oh lord, there used to be a 24HR Fitness in my town that was all about picking up guys. Not sure who designed the building but there were two saunas at the end of a long hallway. With a big window showing the hallway from the larger sauna. Hallway. 30 ft long
You walk down the hallway, door on right. Enter a small hallway. Big wet sauna on the left, small dry sauna on the right. Completely private. If you wanted to fool around, you had complete privacy. Men only. btw. If you were in the big sauna, someone would sit next to the window and could see anyone coming down the hall. If you were in the small dry sauna, there were two doors before someone walked in. Plenty of time to grab a towel.
Now, granted, I was a 21yo buffed dude back then.. 52yo buff guy now. It was fun, before the internet, Grnder, social media. Met one of my long term BF's there. I had sex there with some amazing guys over the 5 years I went there. Fun sex, group sex, or just everyone jacking off together with no touching. Young kids don't know that. Fucking snowflakes. Gay guys, 1975-2000. We had a great thing.