鉱泥(こうでい)温泉
(こうどろ(こうでい)おんせん)
Allows entry with visible tattoos
145. Koudei onsen, Beppu A mud onsen. Open from 8:15 (actually from 8:30) to 12. I arrived around 7:50, third in line, and then a decent crowd gathered. Entry 900 yen, small towels for 250 yen available inside. No shower or body wash/shampoo. The entrance is off to the side at the parking lot in front of the main hell entrance. No stamp (!). Inside there are two baths. One is a regular onsen bath with clear, slightly cloudy water. Water temperature is hot. The main attraction is the mud bath. Better to go there right after washing, since it fits about 6-7 people max, and many people want in. Also, periodically an old lady kicks everyone out of the mud bath and stirs it with a wooden mop. The mud onsen temperature is hot-. Not much mud remains on the skin, and you can wash it off using basins from the main onsen. Might be worth visiting for the mud experience if you've already been to Hoyoland and want more mud. Best to arrive a bit early in the morning.