Oita Castle Park is the site of the former Oita Castle or Funai Castle. The original castle was burnt down by a fire in the mid-18th century and today only the stone walls and moat are original. Some of the turrets (yagura) have been rebuilt after World War II along with the covered bridge over the moat.
Oita Castle Park contains the Oita Bunka Kaikan (097 532 1295) with a restaurant inside the culture center.
Surrounding Oita Castle Park are a number of recommended cafes and restaurants including Hosun Cafe, Hana and Friends Cafe.