Ishikari Bay (石狩湾, Ishikari-wan) is a bay located in Hokkaido of Japan, connected to the Sea of Japan. Ishikari Bay is the area east of the straight line from Cape Shakotan on the west of Shakotan Peninsula to Cape Ofuyu.

Geography

Border communities

Shiribeshi Subprefecture

Otaru, Shakotan, Furubira, Yoichi

Ishikari Subprefecture

Ishikari

Rivers

Ishikari, Shinkawa, Hoshioki, etc.

Development

Ports

In Hokkaido, important ports are located in Ishikari Bay. The New Port of Ishikari Bay [ja] and the Port of Otaru [ja].

Renewable power generation

In addition to a small array of onshore wind turbines, in late 2023 the New Port became host to the Ishikari Bay New Port Offshore Wind Farm, at the time the largest offshore wind farm in Japan.