Built by Kuroda Nagamasa after Tokugawa Ieyasu’s victory at the Battle of Sekigahara in the early 17th century, Fukuoka Castle was the largest castle in Kyushu, with multi-layered stone walls and complex moats. Known as "Maizuru Castle" or the "Castle of the Dancing Crane," most of the structures were dismantled after the Meiji Restoration, leaving only massive stone foundations and some watchtowers.

Visitors can walk along the stone walls and hills where the main buildings once stood. Notable surviving structures include Tamon Yagura (a nationally designated Important Cultural Property) and Shiomi Yagura. The Korokan Ruins, which once accommodated foreign envoys, highlight Fukuoka’s historical role as a gateway to Asia. The highest point offers 360-degree panoramic views of the city.

The cherry blossom season (Hanami) from late March to early April is the most popular time to visit, featuring over 1,000 blooming trees with night illuminations and festivals.

• About 10–15 minutes on foot from Akasaka Station or Ohori Koen Station on the Kūkō Line (Subway).

• Visit during cherry blossom season for festivals and night illuminations.

• Wear comfortable shoes for slopes and uneven stone paths.

• The ruins are located within Maizuru Park, adjacent to Ohori Park, allowing easy combined visits.

Admission Fee:

• Free (special events such as night illuminations may have fees).

Opening Time:

• Central ruins area: 9:00–17:00;
• Surrounding park: open 24 hours.