Having a sauna is also on our team schedule and we experienced it well with our pair members except Merlin. This is not the first time for me to sauna, but at public sauna area and the main difference are the more welled equipment than toas apartment offered and much higher temperature( the temperature over 90 Celsius that makes hard to breathe and i felt something is burning in my threat), as well as cost.
sauna is one kind of sign or culture of Finland and i know that it is a therapy in old times, fins believe it can cure some illness at that time.
The best way to learn something is burning yourself into that kind of situation,so we did.
By the way, it is the first time for me to swim in such cold water that made me feel like i am losing some of my organisms,indeed.