Hiroshima Bay

 is a bay in the Inland Sea, Japan. Administratively, the bay is divided between Hiroshima and Yamaguchi Prefectures. The bay's shore is a Ria. Its surface area is about 1,000 km², with a mean depth of 25 meters.
Trivia.
Jaco Pastorius once threw his "Bass of Doom" (Fender Jazz Bass) into the Hiroshima Bay.