The Bōsō Peninsula is a peninsula that encompasses the entirety of Chiba Prefecture on Honshu, the largest island of Japan. It is part of the Greater Tokyo Area. It forms the eastern edge of Tokyo Bay
The Obitsu River is a river in Kimitsu, Kisarazu, and Sodegaura, Chiba Prefecture, Japan. The river is 88 kilometers in length and has a drainage area of 273.2 square kilometers.
Obitsu Dam, Kisarazu, Chiba Prefecture, Japan
Reeds at Banzu Tidal Flats of the Obitsu River, Tokyo Bay