I took a hot bath at the ryokan. You have a very stylish yukata on you when you take the elevator down to the washing/bath area. (Don't worry your room at Kamogawakan does also have a private bath.)
Once there you undress totally, and sit down on a pallet and shower yourself. Once showered you jump into the hot water pool. Very relaxing.
The ceremony then says that you should get back to the pallet, and while sitting down, soap yourself, and possibly shampoo. Clean of everything, and then get back to the hot pool a second time.
Wipe your body with a small towel when you are done. Put on your yukata, and get back to the room.