Hot springs & public baths in Osaka Explore Osaka with Japan Experience. Discover our "Hot springs & public baths" selection in Osaka thanks to our 2 articles. Hot springs & public baths in Osaka Arima onsen Arima Onsen is one of the oldest and most famous hot springs in Japan. The ryokan (Japanese inns) ... infos Naniwa no yu Discover this spa complex with multiple exterior and interior baths with all mod cons. infos