In-Depth Review of the Four Seasons Hotel Osaka in Japan - AFAR
"Located high above the city, the wellness complex features a 52-foot infinity pool with distant views of Osaka Castle, a sauna, a large onsen-style hot spring area with two Jacuzzi-style ofuro seats, private ofuro baths with glass walls facing the skyline, massages, and a 24-hour fitness center—facilities designed for both relaxation and recovery, though some pool/onsen areas require use of stairs which may limit access for those with mobility constraints." - Yukari Sakamoto