Usami Onsen is a hot spring area in the Usami district of Itō, on the eastern side of the Izu Peninsula in Shizuoka Prefecture. Set between green hills and the sea, it feels quieter than some of the better-known resort towns along this stretch of coast, with a slower rhythm that suits travelers looking for a less crowded base.
What stands out here is the setting rather than spectacle: a local seaside neighborhood where everyday life and a long-established onsen culture sit close together. Usami makes an easy stop for those exploring Izu, especially if the appeal lies in simple coastal scenery, unhurried walks, and a more understated hot spring atmosphere.