Me and a friend went swimming in the creek. It varied and was between 6 feet + in the middle to waist high if you are just crossing over to the hotsprings. No one really used the hotsprings and just swam in the creek all day we were there.
A bunch of single old guys trying to talk to my friend (23yr old girl), which started getting on our nerves. We still had a blast tho.
When leaving there were 2 groups of 3-guys and they all had beer and being a little loud but not drunk (at least yet).
When I was there almost everybody was nude. I have a few pictures if anyone wants to see.