Bōsō Peninsula (房総半島 "Bōsō-hantō") is a peninsula in Chiba prefecture on Honshū, the largest island of Japan, forming the eastern edge of Tokyo Bay, separating it from the Pacific Ocean.
Bōsō Peninsula (房総半島 "Bōsō-hantō") is a peninsula in Chiba prefecture on Honshū forming the eastern edge of Tokyo Bay, separating it from the Pacific Ocean. Honshū is the largest island of Japan.