Kiritappu Onsen

Kiritappu Onsen is a remote coastal hot spring in the Hamanaka town of the Kushiro subprefecture in eastern Hokkaido, situated on the Kiritappu Peninsula jutting into the Pacific Ocean amid one of Japan's most pristine ecological landscapes — the Kiritappu Wetland, a Ramsar-designated marshland of international importance for its population of red-crowned cranes, white-tailed eagles, and Steller's sea eagles. The siliceous thermal waters provide deep warming against the cool, foggy maritime climate of this eastern Hokkaido coastline, where Sea of Okhotsk drift ice reaches the shore each winter and the fishing industry for Pacific saury, kelp, and seafood defines the local economy. The combination of extraordinary wetland birdlife, vast Pacific Ocean horizons, and thermal warming in a genuinely remote setting makes Kiritappu Onsen one of Japan's most wildly situated hot spring escapes.