I don't think anyone is capable to sit in a 90-100C sauna for a whole hour without breaks, otherwise with breaks I surely have been in a sauna for more than an hour.
Just this summer I was at a cottage by Vänern (the largest lake in Sweden), the sauna was built right at the lake with a pier setup for jumping into it, we had a party going late into the night where you constantly moved from the sauna into the lake, out of the lake, have chats, a beer, into the sauna again, rinse and repeat for some 8-10 hours. I have no idea exactly how long I was in the sauna but it was definitely more than a couple of hours in the whole affair :)
If you ever basta in winter, try bringing ice into the sauna. Smearing yourself with ice while in the heat is really nice :)
>I don't think anyone is capable to sit in a 90-100C sauna for a whole hour without breaks, otherwise with breaks I surely have been in a sauna for more than an hour.
Yes, I definitely do agree with that. I too love what you're describing - we have some of that in Poland too :)
However, I was not sure if we're talking about it - or some American version I know only from various memes - where people are coming in with phones and in shoes.