Kakeinoyu
For natural hot springs, look no further than this day-use hot springs inside "HANA・BIYORI," adjacent to Yomiuriland. Perched at an elevation of 100 meters, this hot destination is where you’ll find panoramic views of the Tokyo skyline, with the added perk of seasonal blooms all around from HANA・BIYORI, ensuring the utmost in luxe, unique experience.
The open-air bath was fantastic. The whole place had a really chill vibe, so it was easy to relax!