Notsuke Onsen Hama-no-yu

This is a plain public bathhouse near the fishing port of Odaito, run sento-style with cash-only admission and no soap or shampoo provided. What sets it apart is the water: two indoor tubs and two open-air tubs draw on two separate onsen sources of its own, one a mild alkaline spring left barely warm, the other a saltier spring that runs noticeably hotter. Regulars describe the place as worn around the edges, more about the water than the building, and locally loved for it.