Private bath available for day-use visitors or hotel guests to reserve
Mixed BathingYes
Shared bathing area for all genders
湯
夢龍胆
Yumerindo Spring
Operated by · 夢龍胆
湯
Simple
Classification
Sodium Sulfate-Chloride spring
A hot (78.9 °C) simple thermal spring in southern Aso, among Japan's hotter natural sources. Weakly acidic at pH 3.5 with a faint rotten-egg note of H₂S — gentle on the body despite the heat. Generous metasilicic acid at 183.5 mg/kg leaves the kind of thin silica film that makes skin feel noticeably smoother afterwards.
416. Yumerindo, Kurokawa Onsen ★★
Stayed overnight, took breakfast (served in a separate area, liked it). A ryokan with a mixed outdoor bath in Kurokawa, located east of the central area. Learned about the achievement for the black towel in Kurokawa here, respect to the hotel for that (it hangs on the wall at reception) - I definitely would have missed it otherwise. For guests staying at the ryokan, there are four private baths (one can be reserved at check-in), located in a separate building which you have to walk to outside from the ryokan. The room had a small balcony with a great view of an inner Japanese garden covered with moss.
Regarding service, there are nuances - the elderly lady at reception and the young staff at breakfast did everything precisely, but the male staff, although trying hard, did things somewhat awkwardly and uncertainly.
The onsen is usually available for day-use (higaeri) from 8:30 to 19:00, but on some days of the week the hours are shortened, e.g., from 17:30 to 19:00. It is included in the Kurokawa tag. The ryokan has its own branded towels.
The main mixed outdoor bath is made of stone. The water is clear, temperature around 43-44°C. The view around is of trees. A very excellent standard rotenburo, good both day and night.
The indoor bath has clear water, temperature about 42°C. The air is good to breathe. There is a sauna.
The private simple bath has clear water, temperature 41-42°C. A red bug or cockroach suddenly ran out here, and in panic jumped and drowned itself in the onsen.
A cool rotenburo, highly recommended for visiting. For staying overnight, the service seemed somewhat questionable on one hand, but on the other hand, considering the day-use slot, it is convenient to have such a bath freely accessible.
13.01.2025 14.01.2025
