151. Buzenya, Beppu Visited for day-use bathing for 500 yen. Listed from 11 to 16. Inside it's a decent ryokan with fairly recent renovations. When I entered, nobody was there - I called out "sumimasen" for a while and went looking for the owner. Met him on the stairs and he cheerfully confirmed day-use bathing was available. They stamp both the Beppu onsen-do passport and the 88 Onsens of Kyushu booklet. Inside there's a small bath with Myoban-style water. Milky water with a good amount of white mineral deposits (it was even concentrated and floating in the corner). Water temperature is hot. Great place with amazing water, hard not to recommend.