Raicho-sou is a large mountain lodge with natural hot-spring baths located near the Murodo-daira plateau in the Tateyama area. It’s best used as a comfort-forward base for Tateyama day hikes and plateau exploration—more “alpine lodge” than minimalist ridge hut, with strong infrastructure and easy access from the Alpine Route hub.

Mikuri-gaike Onsen is a mountain lodge with a natural hot spring on the Murodo-daira plateau in the Tateyama area. It’s widely known as Japan’s highest-altitude hot spring lodge, drawing its waters from Jigokudani (Hell Valley) and sitting a short walk from the Murodo transport hub—making it a rare combination of high altitude + real onsen comfort + easy logistics.