Hakodate (函館市, Hakodate-shi) is a city and port located in Oshima Subprefecture, Hokkaido, Japan. It is the capital city of Oshima Subprefecture. The city is the third biggest in Hokkaido. The Hokkaido Shinkansen line including the undersea Seikan Tunnel connects Hakodate to Honshu. Hakodate is located in the centre of Kameda peninsula. The former Goryōkaku fort is now used in as a public park and is popular in Hokkaido for hanami (cherry blossom viewing). The park has also features the tall, white Goryōkaku Tower. Resembling an air traffic control tower, the structure offers a panoramic view of the park, including mainland Japan across the Tsugaru Strait on clear days.
Hakodate has a population of over 279,851 people.