90. Irie Onsen, Beppu ★ An old-school onsen for ¥200. Opening hours are listed as 07:00 to 10:00 and 12:00 to 22:00 (October to March), 06:00 to 10:00 and 12:00 to 22:00 (April to September), and 06:00 to 22:00 (Wednesday). They stamp the Beppu Onsen-do seal (instead of a stamp, there are stickers with a seal image). No staff, no shower. No water analysis table. The water is clear, with only a barely noticeable slight turbidity. Temperature was 44.5. In January, there were citrus fruits in the bath. It was comfortable to breathe inside. It seems standard for Beppu, but this onsen was memorable for me. 30.04.2024 03.01.2026 02.04.2026