Summary I visited the Tsuta Forest behind the secret hot spring hotel “Tsuta Onsen” and the swamps scattered in it. There is a promenade that goes around the beech forest and the swamp, I start to walk from the visitor center where next to the “Tsuta Onsen”. The round trip goes around the six swamps and returns to the The round trip goes around the six swamps and returns to the “Tsuta Onsen” in about 3.5km and about an hour. Tsuta Forest is mainly a beech forest, and I like to visit the fresh green in spring and autumn leaves in autumn. Other: TUTA ONSEN ROKAN official site Here