Tateyama Onsen

Tateyama Onsen is located in Tateyama City, Chiba Prefecture, at the southern tip of the Boso Peninsula where the Pacific Ocean and Tokyo Bay meet, a city whose Tateyama Castle ruins, fresh tuna culture (Tateyama is one of Chiba's premier bluefin tuna landing ports), and the panoramic views from the cape toward the Izu Peninsula across Sagami Bay define a distinctive southern Chiba maritime identity. The siliceous thermal waters here serve a peninsula-tip community where the combination of ocean scenery, fresh seafood, and mineral spring bathing creates a complete coastal wellness experience at the furthest southern reach of the Kanto region. Bathing at Tateyama Onsen — at the tip of the Boso Peninsula with views across the open sea toward Izu, Fuji, and the Izu-Ogasawara volcanic chain — provides one of the Kanto region's most scenically dramatic and geographically satisfying hot spring experiences, at the precise point where Tokyo Bay opens into the infinite Pacific.