The fort design is based on the French military 'bastion system' to eliminate blind spots in defense.
It was the site of the 1869 Battle of Hakodate, the final clash of the Boshin War.
The Magistrate's Office was dismantled in 1871 and only fully reconstructed in 2010 based on original architectural plans.
The fort's star shape was specifically engineered to allow overlapping fields of fire from artillery mounted at the points.
Despite its military origin, the site now serves as a central hub for urban recreation and local civic events.
Goryōkaku is Japan's first Western-style fortress, constructed in the shape of a five-pointed star to maximize defensive angles for cannon fire. Built in the 1860s by the Tokugawa Shogunate, it served as the final stronghold for the Republic of Ezo during the Boshin War. The site spans 25 hectares and currently functions as a public park managed by the city of Hakodate. The star-shaped moat is enclosed by earth ramparts that provide elevated walking paths around the perimeter. At its center stands the reconstructed Magistrate's Office, restored using traditional techniques to replicate the original government headquarters. Over 1,500 cherry trees are planted throughout the grounds, making it a prominent destination for hanami viewing. The adjacent Goryōkaku Tower provides an aerial perspective of the star-shaped fortifications.
The observation deck of the adjacent Goryōkaku Tower for a top-down view of the star geometry.
Walk the entire perimeter of the moat to appreciate the scale of the star-shaped earthworks.
Visit the interior of the reconstructed Magistrate's Office to see traditional shoji screens and historical displays.
Plan your visit to coincide with the cherry blossom season, though be prepared for high foot traffic.
Attempting to see the star shape from the ground level only; the full design is only visible from the top of the nearby tower.
Park grounds are accessible year-round, but specific historical building interiors may have seasonal maintenance closures.
Maintain silence when visiting the inner historical structures and follow paths to preserve the preserved earthworks.
