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Futamata Radium Onsen in Hokkaido – A Solo Stay at Japan’s Rare Limestone Dome Hot Spring

Visited Futamata Radium Onsen – One of Only Two Siliceous Sinter Domes in the World! Travel Date: November 2023 I finally made it to Futamata Radium Onsen, one of those hidden hot springs in Hokkaido I’d been dying to visit! It’s famous across Japan for being one of only two places in the world where you can see a natural limestone sinter dome—the other one being Yellowstone in the U.S. Check the Best Price for Futamata Radium Onsen Futamata Radium Onsen is located deep in the mountains, about 10km from the town of Oshamambe, then another 10km along a mountain ...

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