Tateyama and Southern Boso Sea: Brilliant Blue Waters and Flower Peninsula

Crystal-Clear Tateyama Sea

Tateyama City at the southern tip of Chiba Prefecture has beautiful crystal-clear ocean water. Known as a mecca for marine sports, enjoy scuba diving, snorkeling, kayaking, and other marine activities.

Okinoshima Island Nature

Okinoshima Island in Tateyama Bay is now connected to the mainland with coral reefs spreading around this nature-rich island. Coral colonies and diverse tropical fish make it a popular snorkeling and diving spot.

Tateyama Castle and Satomi Clan History

Tateyama Castle (Shiroyama Park) is the former residence of Sengoku warlord Satomi clan, with a reconstructed castle tower. Views from the tower encompass Tateyama Bay, the Miura Peninsula, and Mt. Fuji.