道志川温泉 紅椿の湯
(どうしがわおんせん べにつばきのゆ)
Open-air outdoor bath
Dry heat sauna room
Uses natural hot spring water
Allows entry with visible tattoos
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
A higaeri spot (with a few rooms for overnight stays) with a small restaurant/cafeteria. In a very scenic location, near a river. Indoor baths: hot at 43, warm at 38, cold bath. Rotenburo at 42 — seems to not be onsen water, just regular water. The rotenburo faces the river, but you need to lean out to see it. Lots of greenery and a fresh atmosphere. The onsen is mildly alkaline with mineral salts. Heated and recirculated. Recommended for the rotenburo and atmosphere. Only an hour and a half from Tokyo.