An Onsen: hot spring is a place to revitalize body and mind.
Kyoto has some hot spring at the suburb,Kurama onsen,Ohara onsen,Yonohana onsen and Arashiyama onsen.Almost of them has a day trip from Kyoto.
However, there is a rule in the place for relaxation. It is same as the public bath.
Take off all of your clothes and taking shower before into the spa .
Do not put your towel in the spa and never do not dive in the spa.
If nobody in the bath room,maybe you can swim just a little.
Many foreigners tend to soak for a long time,but it is not good for your b0dy taking a long bath.
Hot spring has an optimal period,it depends on each hot spring.
We love drinking cold beer after taking Onsen!