Umekita Onsen Ren Wellbeing Park, Osaka A 24-hour super-sento with a mixed infinity pool, where you wear swimsuits, in central Osaka, with views of JR Osaka Station, Umekita Park, and Umeda Sky Building. From ¥3,000 for 12 hours. This new, slightly flashy and noticeably expensive place offers everything you would expect from a super-sento, a few different baths, a sauna, ganbanyoku, a rest area, a restaurant, and massages. It also has a fitness area and gym, plus a mixed swimsuit area, an indoor pool and jacuzzi, a few water exercise machines, and a large outdoor infinity pool with hydro massage, a bar, and lounge chairs. Indoor area, a small bath with natural water (41°C), a larger bath with carbonated water (38°), a small bath with seasonal water, today there were some herbs, a microbubble bath, several hydro massage spots, an electric bath, a large dry sauna, mizuburo (26°), and several loungers. Mixed area, a couple of indoor pools. Here it is important to look for promotions and discount tickets on third-party sites, because if you just show up, the prices bite. Luckily, links to Jalan, Rakuten, and Trip.com are thoughtfully placed right on the price page on the official site. One important thing, if you buy tickets elsewhere, you cannot use the parking discount, they give 5 hours of free parking after spending ¥5,000 specifically at the facility, but it is easy to spend that much on food and massages. Pros: - right in central Osaka - open 24 hours, onsen close for a couple of hours at night for cleaning - children under 12 are not allowed, and those under 18 are kicked out overnight - infinity pool with a city view, and a bar - there is a kashikiri onsen and a sauna Cons: - expensive - no rotenburo, outside there is only a pool, even if it is warm and has hydro massage - children are not allowed, so families are out of luck - the infinity pool and eateries close at night Overall, the impression is mixed, as an onsen place it is rather weak, although there is a decent selection of baths. But the freshness of the building, the overall quality of the finishes and service, the infinity pool, and the possibility to sleep there cheaply at night right by the city’s main station, all of that makes the place quite interesting and worth a visit. The first two photos are from the official site, one photo and the video are mine. 2026.07.15