I just came back from Japan today on a school trip and we spent a night at a hotel in Kyoto with an Onsen. At first all the girls were really really uncomfortable but it's strange that after a while all those worries just go away. The onsen is really relaxing and peaceful! And it's so refreshing going from the onsen into the little cold water tub. Ooo
Ahh there was a sauna as well and it was even hotter than the onsen...every time I breathed through my nose it felt like I was breathing in fire! I didn't stay in there for long
That hotel was really good, we had this amazing dinner with loads of yummy stuff, and breakfast was great as well. I can't remember what the hotel name was called, but apparently it was near the Biwa Lake in Ogoto, just outside Kyoto I think.