Kochi Castle: The Only Castle with All Original Main Buildings Intact

Introduction

Standing majestically in the heart of Kochi City, Kochi Prefecture, on the Pacific Ocean side of Shikoku, Kochi Castle commands attention from atop Mount Otakasaka at an elevation of 44 meters. As one of only 12 original surviving castle towers in Japan, it holds an exceptionally special place in the history of Japanese castle architecture. What never fails to astonish first-time visitors is just how complete the castle remains. Kochi Castle is the only castle in all of Japan where not just the main tower but also the Honmaru Goten palace (known as Kaitokukan) survives intact. The fact that these Edo-period castle structures have been preserved without the loss of a single building to this day fills visitors with a profound sense of awe.

When people hear the name Kochi Castle, many immediately think of the Sengoku-era warlord Yamauchi Kazutoyo. The famous anecdote of his wife Chiyo, who inspired the Japanese expression “naijo no ko” (a wife’s devoted support), and the legacy of Kazutoyo, who became lord of the 200,000-koku Tosa Domain after the Battle of Sekigahara, are deeply etched into this castle’s identity. Walking through the grounds, you can almost feel the continuous history of the Tosa Domain from Kazutoyo’s era emanating from every stone wall and every thick pillar of the tower.

One of the best times to visit Kochi Castle is spring. From late March to early April, approximately 200 Somei Yoshino cherry trees planted around the castle burst into bloom simultaneously, creating a stunning contrast with the white-plastered tower. The “Kochi Castle Festival” is also held during this season, allowing visitors to experience the full spirit of spring in Tosa. At the same time, each season has its own appeal: the tower framed by lush summer greenery, the interplay of autumn foliage and stone walls, and the crisp winter air surrounding the gleaming white castle. No matter when you visit, Kochi Castle captivates every traveler.

This article provides a detailed guide to Kochi Castle’s history and origins, must-see highlights, surrounding attractions, and access information. We encourage you to read through before your visit so you can prepare for a deeper, more rewarding experience.

Overview of Kochi Castle

Kochi Castle is a hilltop castle (hirayamajiro) built in the early Edo period, located at 1-chome Marunouchi, Kochi City, Kochi Prefecture. Also known by its alias “Takajo” (Hawk Castle), a name said to derive from the Mount Otakasaka on which it stands. The castle boasts 15 structures designated as Important Cultural Properties of Japan, including the main tower and the Honmaru Goten palace, making it one of the best-preserved castles in the entire country. The main tower is the only surviving original tower in the Nankaido region and is considered one of the most historically significant among Japan’s 12 surviving original castle towers.

The castle complex comprises the Honmaru (main enclosure), Ninomaru (second enclosure), Sannomaru (third enclosure), Obikuruwa (belt enclosure), and Higashikuruwa (eastern enclosure), among others. The entire castle grounds are now maintained as “Kochi Castle Historical Park.” The main tower is a three-story, six-floor structure with a height of approximately 18.5 meters at the top. Including the stone walls, the total height from ground to peak reaches nearly 30 meters. Inside, the steep staircases have been preserved almost exactly as they were in the Edo period, allowing visitors to experience firsthand the construction techniques and craftsmanship of that era.

The most distinctive feature of Kochi Castle is undoubtedly the fact that the Honmaru Goten palace (Kaitokukan) survives alongside the main tower. While there are 12 castles with surviving original towers across Japan, Kochi Castle is the only one where the Honmaru Goten also remains. The palace served as the domain lord’s residence and administrative headquarters, making it an invaluable historical resource that reveals the daily life and governance of Edo-period feudal lords. In recent years, the castle has attracted approximately 400,000 to 500,000 visitors annually, making it the premier tourist destination in Kochi Prefecture.

Below is a summary of essential information about Kochi Castle. Please review before your visit.

History of Kochi Castle

The history of Kochi Castle is inseparable from the rise and fall of the warriors who survived the Warring States period and the lives of the people rooted in the land of Tosa. Over approximately 400 years, the castle has endured countless trials and transmitted its form to the present day.

The Beginning of Construction: Yamauchi Kazutoyo and the Tosa Domain

In 1600 (Keicho 5), the Eastern Army led by Tokugawa Ieyasu won the decisive Battle of Sekigahara. Yamauchi Kazutoyo, who distinguished himself in this battle, was elevated from lord of Kakegawa Castle in Totomi Province (present-day Shizuoka Prefecture) to daimyo of the entire Tosa Province with an income of 202,600 koku. Drawing on his experience in castle construction, including at Kakegawa Castle, Kazutoyo set about building a new castle to serve as the seat of his domain.

Kazutoyo chose Mount Otakasaka in the center of the Kochi Plain. This hill was a natural fortress surrounded on all sides by tributaries of Urado Bay and marshland, offering an extremely advantageous defensive position. Construction began in 1601 (Keicho 6) and took approximately 10 years, reaching completion in 1611 (Keicho 16). However, Kazutoyo himself did not live to see its completion, passing away in 1605 (Keicho 10) at the age of 60. It was his successor, the second domain lord Tadayoshi, who oversaw the castle’s completion.

Yamauchi Kazutoyo is famously associated with the story of “naijo no ko” (a wife’s devoted support). When Kazutoyo was still young and poor, his wife Chiyo secretly offered 10 gold pieces she had saved to help him purchase a fine horse. This tale is widely celebrated as a testament to marital devotion and a wife’s wisdom. It is said that thanks to Chiyo’s support, Kazutoyo acquired the horse that caught the attention of Oda Nobunaga, eventually leading to his appointment as lord of the Tosa Domain. As a place steeped in the legacy of Kazutoyo and Chiyo, Kochi Castle continues to attract many visitors to this day.

During the castle’s construction, Kazutoyo struggled considerably with the former retainers and local lords of the Chosokabe clan, the previous rulers of Tosa Province (known as the “Tosa Seven Lords,” a class of local warrior-gentry). The Chosokabe goshi (rural samurai), known as “ichiryo gusoku” (one-armor warriors), harbored strong resentment toward the Yamauchi clan, who came from outside, and the Urado Uprising erupted between 1601 and 1602. After suppressing this rebellion, the Yamauchi clan went on to govern the Tosa Domain under a strict two-tier class system dividing samurai into upper-class “uezamurai” and lower-class “goshi.” This very class divide later became the soil of discontent for bakumatsu (end of Edo) figures like Sakamoto Ryoma and Nakaoka Shintaro, who were of the lower goshi class. Kochi Castle is far more than a mere political symbol; it vividly embodies the distinctive historical character of Tosa.

Edo Period Prosperity and the Great Fire

Yamauchi clan rule over the Tosa Domain lasted 15 generations, spanning approximately 270 years from the first lord Kazutoyo through the Meiji Restoration. Throughout the Edo period, the Tosa Domain maintained its 202,600-koku status and, despite being a tozama (outside) domain, sustained a relationship with the shogunate while developing its own unique governance. Kochi Castle served as the political, administrative, and cultural center of the domain, and the castle town flourished.

However, the castle’s history was far from smooth sailing. In 1707 (Hoei 4), a major earthquake (the Hoei Earthquake) caused extensive damage to the castle grounds, and the following year in 1708 (Hoei 5), a devastating fire destroyed most of the castle’s structures. The fire also spread to the castle town, and records show that virtually all of the main buildings, including the main tower, were reduced to ashes.

Reconstruction began during the Kyoho era (from 1716 onward). The decision to rebuild was made during the tenure of the 6th domain lord Yamauchi Toyotaka, and under his successor, the 7th lord Yamauchi Toyotsune, reconstruction of the main tower, Honmaru Goten palace, and other structures was carried out from 1724 (Kyoho 9) to 1753 (Horeki 3), spanning nearly 30 years. Particularly noteworthy is that the original architectural style was faithfully reproduced to the greatest extent possible during this reconstruction. The main tower and Honmaru Goten palace that we see today date from this Kyoho–Horeki period reconstruction.

In the latter half of the Edo period, the Tosa Domain took pride in its rich agriculture, forestry, and fisheries blessed by abundant natural resources, as well as excellent industries such as Tosa washi (Japanese paper) and Tosa cutlery. The domain school “Kyojukan” (later renamed “Bunbukan”) fostered talent in both literary and martial arts, and by the bakumatsu period, Tosa had produced numerous figures who shaped modern Japan, including Iwasaki Yataro (founder of the Mitsubishi conglomerate), Itagaki Taisuke (leader of the Freedom and People’s Rights Movement), and Sakamoto Ryoma. It is no exaggeration to say that the spirit of the Tosa Domain during this era is crystallized within Kochi Castle.

The Castle Abolition Decree and the Meiji Era Onward

After the Meiji Restoration, castles across Japan faced the wave of the “Haijōrei” (Castle Abolition Decree). Issued in 1873 (Meiji 6), this decree stated that castles used as military facilities would be placed under the jurisdiction of the Army Ministry, while others would be demolished or sold off. Hundreds of castles throughout the country faced the threat of dismantlement under this decree.

What happened to Kochi Castle? Although it was subject to the decree, strong preservation efforts by local supporters and former Tosa Domain affiliates succeeded in preventing its demolition. The survival of Kochi Castle’s main tower and Honmaru Goten palace from the enactment of the Meiji-era decree to the present day is a testament to the fierce determination of the people of that time to protect their castle. While many castles across Japan vanished under the Abolition Decree, Kochi Castle’s continued preservation was rooted in the local pride and deep affection for their homeland that the people of Tosa held.

After the Meiji Restoration, the castle grounds were used as Army land, but the castle structures themselves were maintained. During the Taisho era, efforts to develop the castle ruins as a park gained momentum, and by the early Showa period, it was opened to the public as “Kochi Park.” It is said that many of the cherry trees seen around the castle today were planted during this period of environmental improvement.

On the other hand, managing Kochi Castle from the Meiji era through the early Showa period presented challenges. The immense costs of repairing aging structures and maintaining the stone walls placed a considerable burden on local authorities. Additionally, during the closing stages of World War II in 1945 (Showa 20), air raids struck the city of Kochi, but Kochi Castle itself was miraculously spared from direct hits. This period became a turning point when the castle’s value as a cultural property was recognized anew, leading to the full-scale restoration and preservation projects of the postwar era.

Postwar Preservation and Restoration

From the late 1940s through the 1950s, full-scale preservation and restoration work on Kochi Castle was carried out. In 1954 (Showa 29), the main tower and 15 other structures were designated as Important Cultural Properties of Japan, enabling systematic restoration under legal protection as cultural assets.

The largest-scale preservation project was the “Showa Grand Restoration” carried out from 1959 (Showa 34) to 1969 (Showa 44). During this decade-long project, major structures including the main tower, Honmaru Goten palace, and Otemon Gate underwent complete disassembly and restoration. Extensive work was performed, including replacing deteriorated timber, replastering the lime walls, and restacking the stone walls—a fundamental overhaul of the structures from the ground up. It was through this restoration that Kochi Castle regained the magnificent appearance it presents today.

The Showa Grand Restoration also revealed the exceptional building techniques of the Edo-period master carpenters. The timber used during the Kyoho–Horeki period reconstruction still retained solid heartwood after nearly 300 years, attesting to the precision of wood selection and processing in that era. Ink inscriptions (sumigaki) and assembly markings (bandzuke) discovered during the disassembly process have become invaluable resources for the study of Edo-period construction techniques.

Regular maintenance work has continued at Kochi Castle since the Showa Grand Restoration. During the Heisei era, projects including stone wall collapse prevention and the re-roofing of the Honmaru Goten palace were also undertaken, as continuous efforts are made to maintain the castle as a “living cultural property.” Archaeological excavations of the castle town have also been ongoing, revealing one Edo-period remnant after another. These steadfast research and preservation activities continue to enhance Kochi Castle’s value as a cultural heritage site.

Kochi Castle Today: The Only Castle with a Surviving Honmaru Goten Palace

Today, Kochi Castle continues to grow in historical significance while serving as the face of tourism in Kochi Prefecture. In 1990 (Heisei 2), the castle’s visitor facilities were expanded, and visitors can now tour the interior of the main tower, while the Honmaru Goten palace (Kaitokukan) houses exhibitions on the history of Kochi Castle and the Tosa Domain. The entire castle grounds have been developed as “Kochi Castle Historical Park,” also serving as a place of relaxation for local residents.

Of particular note is Kochi Castle’s selection as one of the “100 Fine Castles of Japan” by the Japan Castle Foundation. As a stamp rally destination that draws castle enthusiasts from across the country, it is known as a must-visit site among castle aficionados. Among the 12 surviving original castle towers, the unique distinction of having both the tower and the Honmaru Goten palace intact has cemented Kochi Castle’s extraordinary status.

Since the Reiwa era began, preservation and utilization projects for Kochi Castle have been actively promoted. Services for domestic and international visitors have improved through the use of digital technology in exhibits, nighttime illumination events, and the introduction of foreign-language guided tours. Additionally, the “Kochi Castle Museum of History,” located southwest of the castle, opened in 2017 (Heisei 29), further enriching the exhibition and research of materials related to the history and culture of the Tosa Domain.

In recent years, annual visitor numbers have remained above 400,000, with increasing numbers of tourists coming from both Japan and overseas. The castle is particularly popular among international visitors, and the term “surviving original tower” has gained recognition even among overseas Japanese castle enthusiasts. Today, Kochi Castle continues to shine as it carries the weight of over four centuries of history into a new era.

Highlights and Must-See Spots

Here is a curated selection of spots you cannot miss when visiting Kochi Castle. From nationally treasured structures like the main tower and Honmaru Goten palace to the scenic cherry blossom landscapes within the castle grounds, Kochi Castle’s unique attractions are concentrated in one remarkable location.

The Surviving Original Main Tower

Kochi Castle’s main tower is the only surviving Edo-period castle tower in the Nankaido region. Fellow members of the 12 surviving original tower group include Himeji Castle (White Heron Castle), Matsumoto Castle, and Inuyama Castle, but Kochi Castle’s tower features a distinctive architectural style called “dokuritsu-shikiboro-gata” (independent watchtower type). The watchtower at the top level is set independently from the lower tower structure, beautifully exemplifying the characteristics of castle architecture in southwestern Japan.

The tower’s exterior features white lime plaster in the “nurigome” (plastered) style, and its striking whiteness stands out even from a great distance. With three stories and six floors, the watchtower at the top offers panoramic views of the Kochi Plain and city, and on clear days, the Pacific Ocean is visible. While Mount Otakasaka at 44 meters is not particularly tall, the 360-degree views from the top of the tower are breathtaking.

The highlight of touring the interior is the experience of climbing steep staircases up to the sixth floor. Each floor features exhibits on the castle’s history and structure, allowing visitors to learn about castle architecture as they explore. Pay particular attention to the “bandzuke” (assembly markings) carved by Edo-period master carpenters. Numbers and symbols are inscribed on each structural member, an ingenious system ensuring pieces could be returned to their exact positions during major disassembly and restoration work.

The tower interior also features defensive installations such as “ishiotoshi” (stone-dropping holes) and “sama” (arrow slits) throughout, allowing visitors to observe up close how the castle functioned as a military fortress. The moment you step onto the castle’s top floor, you can experience the same sweeping view of the domain that the Edo-period lords must have seen—a truly one-of-a-kind experience. Touring the tower interior alone takes about 30 to 45 minutes, but we recommend allowing at least one hour to also enjoy the stone walls and the castle grounds as a whole.

Honmaru Goten Palace (Japan’s Only Surviving Honmaru Palace)

The greatest treasure of Kochi Castle is the surviving Honmaru Goten palace (Kaitokukan). The distinction of being “the only castle in all of Japan where both the main tower and the Honmaru Goten palace survive” holds profound significance not just for castle enthusiasts but for anyone with an interest in history and architecture. While remnants of Honmaru Goten palaces have been excavated at other castle sites across the country, Kochi Castle’s Kaitokukan is the only one that survives as a standing structure above ground.

The Kaitokukan is a single-story building constructed adjacent to the main tower, which served as the domain lord’s residence, reception hall, and administrative headquarters. The interior adopts the “shoin-zukuri” style of samurai residential architecture, with features such as tokonoma (decorative alcoves), chigaidana (staggered shelves), and tsukeshoin (built-in desks) that convey the formality and aesthetic sensibility of the era. The unique configuration of having the tower and palace connected by a corridor is a feature found at Kochi Castle alone.

During a tour of the palace interior, visitors can view up close the Oshoin (grand reception hall) where the lord conducted official business and the Moronoma (audience chambers) where guests were received. The ceiling heights, joinery details, and openwork ranma (transom carvings) of each room vary according to rank, with spaces of differing levels of formality skillfully arranged throughout, giving a sense of the refinement of daimyo culture. Even by modern standards, the ingenuity of the spatial design is remarkable, offering a renewed appreciation for the sophistication of Edo-period architecture.

The Kaitokukan also houses exhibits on the history of the Tosa Domain and the Yamauchi clan lineage, providing information for a deeper understanding of the relationship between Kochi Castle and the Tosa Domain. Touring both the main tower and the Honmaru Goten palace together allows you to grasp the full picture of the castle from both its military function and its residential and administrative functions. This space, which could be called a textbook of castle architecture, is well worth exploring at a leisurely pace.

Otemon Gate

The Otemon Gate, the main entrance to Kochi Castle, is the first historical structure visitors encounter upon arrival. Originally built during the Keicho era, the current structure dates from the 1753 (Horeki 3) reconstruction. Like the main tower, it is designated as a National Important Cultural Property, preserving the characteristics of Edo-period castle gate architecture.

The Otemon is a “Koraimon” (Korean-style gate), characterized by its structure of large main pillars and smaller supporting pillars. Iron plates are affixed to the gate doors, attesting to its formidable defensive capabilities. Standing approximately 7 meters tall and 5 meters wide, it is a standard size for an Edo-period castle gate, yet its imposing presence overwhelms visitors.

In the plaza in front of the Otemon Gate stand bronze statues of Yamauchi Kazutoyo and his wife Chiyo, popular as a spot for commemorative photos. Depicting Kazutoyo on horseback with Chiyo seeing him off, these statues serve as a monument honoring the founder of the Tosa Domain and his wife, celebrated for her devoted support, and form an iconic part of Kochi Castle’s landscape. In spring, the cherry blossoms around the Otemon Gate burst into bloom, and the contrast of the white gate with pink cherry blossoms draws many photographers.

From the Otemon Gate to the Honmaru, a gentle slope and stone steps lead the way. Stone walls line both sides of this approach path, allowing visitors to experience the grandeur of the castle as they make their way to the tower. The stones used in the walls feature a mix of “nozurazumi” (rough-hewn stacking) and “kirikomihagi” (precisely cut and fitted stacking), showing how construction techniques evolved over different periods. Those interested in castle architecture history should pay attention to these differences in stone wall construction. The walk from the Otemon Gate to the tower takes about 10 to 15 minutes, and the journey itself becomes an experience of feeling the castle’s history.

Kochi Castle Museum of History

Located to the left of the Otemon Gate, on the southwest side of the castle, the “Kochi Castle Museum of History” is a relatively new facility that opened in 2017 (Heisei 29). It houses approximately 67,000 items related to the Tosa Domain and the Yamauchi family, with carefully selected materials and cultural properties on permanent display. When visiting Kochi Castle, we strongly recommend including this museum in your itinerary.

The museum’s greatest highlights are the weapons, armor (kacchu), and swords passed down through the Yamauchi family. The armor said to have been worn by the first domain lord Yamauchi Kazutoyo and the successive lords’ sword collections are impressive, offering a comprehensive view of Edo-period samurai culture at its finest. Historical documents, including domain administrative records and old maps, are also well represented, providing detailed insight into how the Tosa Domain was governed.

Especially popular are the exhibits related to the bakumatsu period of the Tosa Domain. Materials related to Tosa-born bakumatsu figures such as Sakamoto Ryoma, Takechi Hanpeita, and Itagaki Taisuke fascinate history enthusiasts. While items connected to Ryoma are scattered across locations throughout Japan, viewing them in the context of official Tosa Domain records provides a deeper understanding of the significance of their actions.

The museum is a five-story building, and the top floor offers a superb vantage point with a direct frontal view of Kochi Castle’s main tower. Experiencing Kochi Castle and the museum together transcends the simple impression of “seeing a castle” and provides a profound understanding of Tosa’s history. A combination ticket covering both the castle admission and the museum is available at a discounted price. Allow approximately 1 to 1.5 hours for the museum, depending on the exhibits.

Spring Cherry Blossoms and the Kochi Castle Festival

The season when Kochi Castle welcomes the most visitors is during the cherry blossom season from late March to early April each year. Approximately 200 Somei Yoshino cherry trees are planted within and around the castle grounds, and when they bloom, the white main tower and pink cherry blossoms create a spectacular scene. This landscape has been selected as one of the “100 Best Cherry Blossom Viewing Spots in Japan,” drawing visitors from across the country.

There are multiple cherry blossom viewing spots to enjoy. Looking up at the tower from the plaza in front of the Otemon Gate, you can see the tower framed beautifully through the cherry blossoms. The cherry trees in the Honmaru area are particularly dense, and at full bloom, walking through feels like passing through a tunnel of cherry blossoms. The cherry tree-lined path along the Obikuruwa on the east side of the castle is also beautiful, perfect for enjoying blossoms while strolling. Nighttime illumination is also available, offering an enchanting view of the cherry blossoms after dark.

Timed to coincide with the cherry blossom season is the “Kochi Castle Festival (Tosa no Okyaku).” “Okyaku” is a Tosa dialect word meaning “feast” or “hospitality,” perfectly embodying Kochi’s open and convivial character. During the festival period, taiko drum performances and dance shows are held within the castle grounds, and food stalls line the paths, creating a lively atmosphere. Local specialties including Kochi’s famous katsuo no tataki (seared bonito) and sawachi ryori (large-platter cuisine) can also be enjoyed, making it a festive celebration rich in local flavor.

Kochi Castle’s beauty extends beyond spring as well. Summer brings the tower surrounded by lush green trees, autumn offers the contrast of colorful foliage against white plaster, and winter presents the tower gleaming white in the crisp air—each season reveals a different expression. Additionally, free admission is offered on November 3 (Culture Day), making the castle accessible and beloved by local residents. When planning your visit to Kochi Castle, be sure to check seasonal event information in advance so you can make the most of your trip.

Nearby Attractions

Centered around Kochi Castle, the surrounding area is dotted with attractive spots where you can experience Kochi’s food culture, history, and natural beauty. Here are some places we recommend visiting alongside your trip to Kochi Castle.

Hirome Market (Kochi’s Gourmet Spot)

Located about a 5-minute walk south of Kochi Castle, “Hirome Market” is a food hall beloved by both locals and tourists as Kochi’s premier gourmet destination. Since opening in 1998 (Heisei 10), it has developed into a food theme park gathering Kochi’s soul food under one roof.

The star attraction of Hirome Market is undoubtedly the “katsuo no tataki” (seared bonito). Kochi is Japan’s top consumer of bonito, and the “warayaki tataki”—fresh bonito spectacularly seared over straw flames—is an exquisite dish that can only be truly experienced in Kochi. Multiple bonito tataki restaurants compete within the market, each offering subtly different seasonings and levels of searing. The bold way of eating it topped with garlic and ginger embodies the robust character of Tosa’s food culture.

Beyond bonito, the market features a diverse array of restaurants and bars, including izakaya serving local Tosa sake, fresh sashimi, and regional dishes made with local vegetables. If you know how to enjoy an izakaya, your dining experience at Hirome Market will be even more rewarding. Large communal tables are set up in the market’s hall, fostering an open “okyaku (feast)” culture where strangers naturally strike up conversations with fellow travelers. Operating hours are generally from 8:00 AM to 11:00 PM (varies by shop), with the lively atmosphere continuing from noon well into the evening.

Katsurahama Beach and the Sakamoto Ryoma Memorial Museum

Located approximately 10 kilometers south of Kochi Castle, about 20 to 30 minutes by car, Katsurahama is a beautiful crescent-shaped beach facing the Pacific Ocean. Known as a famous moon-viewing spot, Katsurahama is a scenic area surrounded by black pine groves and rocky shores, also famous for the tale of the bakumatsu hero Sakamoto Ryoma, who is said to have gazed out at the Pacific from this beach while dreaming of Japan’s future.

The symbol of Katsurahama is the bronze statue of Sakamoto Ryoma standing on a hilltop at the cape. The imposing statue, measuring 13.5 meters tall (including the pedestal), faces the Pacific Ocean and has become one of Kochi’s most iconic landmarks. A special platform is set up in front of the statue at the same height as “Ryoma’s line of sight,” allowing visitors to see the same view that Ryoma once beheld.

The “Sakamoto Ryoma Memorial Museum,” located near Katsurahama, features comprehensive exhibits on Ryoma’s life and the history of the Tosa Domain during the bakumatsu period. Visitors can view up close precious materials including letters in Ryoma’s own handwriting and his personal belongings, making it a must-visit for fans of bakumatsu history. Visiting Katsurahama and the Ryoma Memorial Museum after learning about the overall history of the Tosa Domain at Kochi Castle provides a more three-dimensional understanding of bakumatsu-era Tosa. Combining your itinerary with other surviving castles such as Shuri Castle will deepen your understanding of Japan’s castle culture even further.

Marugame Castle and the Shikoku Castle Circuit

For castle enthusiasts who have visited Kochi Castle, we highly recommend the “Shikoku Castle Circuit”—a tour of Shikoku’s surviving original castle towers. Shikoku has three castles with surviving original towers: Kochi Castle (Kochi City, Kochi Prefecture), Marugame Castle (Marugame City, Kagawa Prefecture), and Uwajima Castle (Uwajima City, Ehime Prefecture), all precious castles preserving Edo-period architecture.

Among these, Marugame Castle is approximately 2 hours from Kochi Castle via expressway, making it possible to visit both castles on a two-day, one-night trip. Marugame Castle is renowned as a “castle of stone walls,” with stone walls said to be the tallest in Japan (approximately 60 meters) as its main highlight. Comparing the stone wall construction methods and castle layout (nawabari) between Kochi Castle and Marugame Castle reveals the diversity and regional characteristics of castle architecture across Japan.

Additionally, Bitchu Matsuyama Castle in Okayama Prefecture is another surviving original tower castle located in the nearby San’yo region. Its tower perched atop a 430-meter mountain is known as the “Castle in the Sky,” floating above a sea of clouds, offering a completely different locational appeal from Kochi Castle. Visiting multiple surviving original tower castles allows you to experience the depth and richness of Japanese castle architecture. Planning a castle-hopping trip that includes Inuyama Castle in the Owari region and other castles across Japan is one of the great pleasures of traveling in Japan.

Access Information

The most convenient way to reach Kochi Castle is by bus from Kochi Station. Located in the center of Kochi City, the castle is relatively easy to access by both public transportation and car. Please refer to the following options.

• Train (JR): Take the JR Dosan Line to Kochi Station. From Kochi Station to Kochi Castle is approximately 25–30 minutes on foot (1.8 km). Transferring to the streetcar (Tosaden Kotsu) is recommended.
• Streetcar (Tosaden Kotsu): From Kochi Station, transfer at “Harimayabashi” and alight at “Kochijo-mae” stop, then walk approximately 5 minutes. The fare is a flat rate of 200 yen for adults. This is the most recommended access method.
• Bus (MY Yu Bus): A sightseeing loop bus connecting Kochi Station with Katsurahama, Makino Botanical Garden, Kochi Castle, and more. A one-day unlimited ride pass (1,000 yen for adults) is convenient. Alight at the Kochijo-mae bus stop, which is right next to the castle.
• Taxi: Approximately 10–15 minutes from Kochi Station by taxi, with an estimated fare of 1,200–1,500 yen.
• Car: Approximately 20 minutes from the “Kochi IC” on the Kochi Expressway. Municipal parking lots are available nearby (next to Otemae Elementary School, Josai Park parking lot, etc., approximately 200 yen per hour).
• Airplane + Bus: From Kochi Ryoma Airport, take the route bus (Tosaden Kotsu) to Kochi Station in approximately 35 minutes, then transfer to the streetcar. Direct flights are available from Tokyo, Osaka, Nagoya, Fukuoka, and other cities.

The most recommended way to access Kochi Castle is by streetcar (Tosaden Kotsu). Streetcars (LRT) run throughout Kochi City like a web, and it is only about a 5-minute walk from the “Kochijo-mae” stop to the Otemon Gate. Using the MY Yu Bus one-day unlimited ride pass allows you to efficiently visit Kochi Castle, Katsurahama, and Makino Botanical Garden in a single trip. While there are several parking lots in the area, they become extremely crowded during the cherry blossom season (late March to early April), so we strongly recommend using public transportation. If you also plan to explore the nearby Hirome Market and shopping streets, the streetcar is far more convenient than driving.

Summary

Kochi Castle stands as one of Japan’s 12 surviving original castle towers with unshakable historical significance, while possessing the unique distinction of being the only castle in all of Japan where both the main tower and the Honmaru Goten palace survive. Approximately 420 years since its founding by Yamauchi Kazutoyo, having overcome numerous trials to preserve its form to this day, Kochi Castle can be considered the culmination of Japan’s castle culture.

Whether you visit amid the spring cherry blossoms, the deep green of summer, the autumn foliage, or the dignified stillness of winter, the castle rewards you with unforgettable scenery in every season. Combine your visit with a feast of katsuo no tataki at Hirome Market and a gaze across the same Pacific Ocean that Ryoma once surveyed at Katsurahama, and you will have a trip that fully captures the allure of Kochi. It also serves as the perfect starting point for a tour of Shikoku’s surviving original castle towers.

If you are interested in castle architecture, please also explore our related articles. Reading about the history of Osaka Castle alongside this article will deepen your understanding of castle culture during the Sengoku and Edo periods. For those considering accommodation in Kochi, our article introducing traditional Japanese lodging styles may also be helpful. Please refer to our ryokan guide when planning your stay near Kochi Castle.

Frequently Asked Questions