Uses natural hot spring water
458. Funai Onsen, Oita Onsen for 640. Operating hours listed as 14:00 to 23:00 (except Tue). They stamp the 88 Onsen of Kyushu book. Bath photos from the internet, accurate. Two baths inside, the water is black-brown. The water color shifts depending on conditions. When there's a lot of it without any objects, it looks black. When there's less, it looks more brown. When your body is in the water, the upper part looks red-black through the surface, and when submerged deep (like placing your hand on the bottom), you can't see your hand at all. Temperature 39-40 and 41. Air inside is fine. Has a sauna and cold bath. Interesting place, primarily because of the rare black water. 31.03.2025