Goryokaku Park: Hakodate's Star-Shaped Fort and Cherry Blossoms

A European-style star fort, a tall observation tower and about 1,500 cherry trees make Hakodate's Goryokaku one of Hokkaido's most photogenic spring stops.

Published October 21, 2026 at 11:50 PM JST | By Tokyo Paul

Quick answer: Goryokaku is a five-pointed star-shaped fort in Hakodate, Hokkaido, completed in 1866 and now a public park. About 1,500 cherry trees, mainly Somei Yoshino, bloom around its moat from late April into early May, often near Golden Week. The 107-meter Goryokaku Tower lets visitors see the whole star from above, and evening illumination is usually offered for part of the season.

Goryokaku combines three things travelers love: a good story, a distinctive shape and spring flowers. The fort was designed to look like the star-shaped fortresses of Europe, and it later became the stage for the last chapter of the Boshin War. Today it is a calm park where families picnic along the old earthen walls and petals drift across the water. This guide covers why the fort is shaped like a star, what happened here, how the cherry blossoms behave, and how to make the most of a visit, including the tower, the reconstructed magistrate's office and practical access tips.

Why the fort is shaped like a star

Goryokaku is a five-pointed star fort, and the shape was a deliberate choice. A scholar of Western learning named Takeda Ayasaburo designed it in 1855 after studying European fortified cities. The construction took about seven years, and the fort was completed in 1866.

A star layout allows defenders to place more gun positions and leaves fewer blind spots than a traditional Japanese castle layout. The fort was meant to protect the Tsugaru Strait south of Hakodate and to serve as a government base for the Tokugawa shogunate in the north. Visitors often describe it as Japan's first Western-style fortress, and it is a Special Historic Site.

The magistrate's office at the center

At the heart of the star stood the Hakodate Magistrate's Office, which governed the region for the shogunate. The building was dismantled in 1871, and about one third of it was later rebuilt on the same site using original designs, methods and dimensions. Work on the reconstruction began in 2006 and was finished in 2010.

The interior is open to visitors and holds exhibits and videos on the fort's history, including its brief role as the administrative center for the area. Walking its wooden corridors gives a sense of how a large government compound functioned, and it makes a pleasant indoor stop on a windy spring day.

A short chapter in the Boshin War

After the Tokugawa shogunate ended, former shogunate forces led by Enomoto Takeaki moved north, and on January 27, 1869, the Republic of Ezo was proclaimed. Enomoto was elected president in an open vote that day. The republic lasted only a few months, and in June of that year Enomoto surrendered, bringing the Boshin War to an end.

The final battle took place around Goryokaku and lasted about a week. Hijikata Toshizo, the Shinsengumi vice-commander who is celebrated in many Japanese stories, is remembered here, and a bronze statue of him stands in the tower's history gallery. Later the island was renamed Hokkaido in September 1869. The fort today presents this history calmly, as a story of a turning point in the country's modernization.

From fort to park

After the war most buildings were removed, and the moat was used in winter to harvest ice that was sold on the main island of Honshu. The site was opened to the public as a park in 1914, and many trees were planted at that time. It was declared a Special Historic Site in 1952, and it is now managed as a city park.

The park today is an open green space with broad lawns, tree-lined walls and a wide moat. The earthen ramparts form natural strolling paths, and the angles of the star create new views at each turn. The mix of Edo period engineering and modern leisure is part of the charm.

Cherry blossoms at Goryokaku

The park has about 1,500 cherry trees, mainly Somei Yoshino, planted throughout the fort grounds and along the moat. Peak bloom is typically late April to early May, and in recent years first bloom has come in the second half of April according to Hakodate's local observation records, with full bloom usually following within a few days. Bloom timing changes with the weather, so visitors should call or check the park's official updates before choosing a date.

As the petals fall, they color the moat a soft milky pink, and the trees along the water make popular photo spots. Visitors can stroll the grounds, picnic in the designated areas, or tour the moat by rowboat in season. The park is also lit in the evening for a couple of weeks during the bloom, with hundreds of red and white lanterns, typically from 7 PM to 9 PM, though exact dates change each year.

Goryokaku Tower and the view from above

The star shape is best appreciated from the sky, and that is what Goryokaku Tower is for. Built in 2006 beside the fort, the tower is 107 meters high, with an observation deck about 90 meters up. From there visitors get a 360-degree panorama of the star fort, Mount Hakodate and the Tsugaru Strait, and on clear days the view reaches as far as the Shimokita Peninsula.

The tower has a historical gallery with scale models, dioramas and exhibits on the Battle of Hakodate, plus a cafe, a restaurant and a shop on the ground floor. Typical hours are daytime, and they are sometimes extended in blossom season, so check the tower's official site before you go. A good plan is to enjoy the view in the morning, then walk down for the ground-level blossoms in the afternoon.

Getting there and planning your day

From JR Hakodate Station, the city tram runs to the Goryokaku Koen-mae stop in about 17 minutes, followed by a walk of roughly 10 minutes. A bus to Goryokaku Koen Iriguchi takes about the same time, with a shorter walk, and a shuttle bus goes to the tower. Be careful not to choose JR Goryokaku Station, which is a much longer walk, at around 40 minutes, from the park.

Pair the visit with other Hakodate highlights, such as the morning market and the harbor night view. In blossom season, bring warm layers, since Hokkaido evenings stay cool, and expect crowds on weekends around Golden Week. Please keep to the paths, avoid walking on the tree roots and carry your trash with you. As always, confirm the opening hours, lighting times and any picnic rules with the official sites before you travel.

Want to go deeper? Tokyo Paul's book Japan Cherry Blossom Photobook is available on Amazon.

Frequently Asked Questions

Why is Goryokaku shaped like a star?

It was designed in 1855 by Takeda Ayasaburo after he studied European fortresses. A star shape allows more gun positions and fewer blind spots than a traditional Japanese castle, and the fort was built to defend the Tsugaru Strait and serve as a shogunate base in the north.

When do the cherry blossoms bloom at Goryokaku?

Peak bloom is typically late April to early May, often overlapping with Golden Week. Recent first-bloom dates have fallen in the second half of April, but timing varies, so check the park's official bloom updates before you go.

What is the best view of the star shape?

The observation deck of Goryokaku Tower, about 90 meters up, gives a 360-degree view of the star fort and the surrounding city. The tower is 107 meters tall, and it also has a historical gallery about the Battle of Hakodate.

Further Reading

To explore further, see Goryokaku, Goryokaku Tower: Cherry Blossoms of Goryokaku and Enjoy Hakodate's History and Nature: A Travel Guide to Goryokaku Park.

Keep Exploring

More guides from Tokyo Paul: Hakodate: Night Views, Morning Market and Harbor Charm, hakodate port festival and When Do Cherry Blossoms Bloom? Region by Region from Okinawa to Hokkaido.