Akaigawa Caldera Onsen

Akaigawa Caldera Observatory (Hiyamizu Pass) — Serene Views and the Dream of a Sea of Clouds☁️

Discover the Akaigawa Caldera Observatory at Hiyamizu Pass in Hokkaido — serene views, seasonal beauty, and the chance to witness a sea of clouds. Access, nearby spots, and hotels included.

🇺🇸 yoichi

Akaigawa Caldera Onsen: ¥400 Hot Spring Guide (2025)

Soak at Akaigawa Caldera Onsen in Yoichi, Hokkaido for just ¥400. Hot 43–44°C baths, open-air tub, big rest area, diner, and easy access from Kiroro & Otaru. Hours, bus, map.

🇺🇸 yoichi

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