You literally made me remember my mid-winter sauna-ing days. At the camp where we keep talking about taking Comedy Camp, there was a wood fired sauna, right by the lake. We would dance til sweaty, 1 or 2 am, after all the kidlets were tucked safely in bed, run to the sauna, strip naked, jump into the cold lake, come into the sauna, where we'd sing and drum and make a lot of noise, and do it repetitively for another hour or until somebody decided to pick up their musical instruments again and everyone would go back to the dance hall and start the cycle over again. I was in my 20's. Best youth ever.