Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Erimo Onsen, at Cape Erimo on the storm-battered southeastern tip of the Hidaka mountains in Hokkaido, offers chloride thermal bathing at Japan's windiest cape — a rocky promontory where the wind blows at force-five or above for over 290 days per year, where a remarkable community reforestation project restored the coastal forest over several decades after it was stripped bare, one of Japan's great environmental rehabilitation stories. The saline chloride waters provide essential warmth for a remote fishing community where harbour seals haul out on the rocks below the lighthouse throughout the year, making Cape Erimo's Seal Watch one of Hokkaido's most accessible wildlife viewing experiences. The Erimo Misaki Wind Museum — uniquely dedicated to celebrating wind rather than sheltering from it — and the dramatic clifftop views of the Pacific horizon make Erimo Onsen one of Hokkaido's most memorably elemental destinations.
Insider tip — Erimo Onsen perches near Cape Erimo at the tip of Hokkaido's windswept Hidaka coast, one of Japan's most ferociously windy headlands where storms funnel through a narrow rocky bottleneck. The hot sodium-chloride baths provide vital warmth against the near-constant Cape Erimo gales, and the facility is beloved by the small fishing communities that harvest kelp on the rocky shoreline below. The cape's harbor seal colony at the base of the cliffs is visible from vantage points near the baths. Arrive before sunset for dramatic views over the Pacific.