Aman Spa offers a traditional onsen bathing experience with treatments inspired by Japan’s natural environment, featuring ingredients like green tea, Tamba kuromame black beans, local sake, ...

Arimasansoh Goshobessho’s treehouse has a wildly creative bird’s nest onsen. Arima Onsen, Kobe; 1.5 hours from Osaka In the mountains above cosmopolitan Kobe, Arimasansoh Goshobessho can be found in ...