Dogashima Onsen Nishiizu
- Location
- Nishiizu, Shizuoka, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Dogashima Onsen Nishiizu is located on the spectacularly beautiful rocky coast of Nishiizu Town on the western Izu Peninsula, at Dogashima — a formation of tuff volcanic rock eroded into dramatic sea caves, natural arches, and isolated sea stacks best explored by glass-bottom boat tours that enter the illuminated Tenodo Cave where sunlight pierces through a collapsed ceiling to create an otherworldly blue-lit grotto beneath the Pacific. The chloride-rich hot spring waters of Dogashima emerge from the volcanic geology of the Izu coastal zone, providing warm saline mineral bathing in a setting among the most visually extraordinary on the entire Japanese Pacific coast, where guests can soak in outdoor rotenburo pools directly above the sea with the sounds of Pacific waves and seabirds as accompaniment. The combination of Dogashima's unique tuff rock coastal formations, boat cave tours, sunset Pacific views, and thermal mineral bathing offered in cliffside ryokan pools where the bathwater appears to merge with the Pacific horizon makes it one of the Izu Peninsula's most dramatically memorable hot spring experiences.