I don't know about bath houses at all. The sex club I went to though you have to go through a quick orientations n where they're basically like "don't be a prude, do be respectful" and some hygiene and consent things. They're very, very clear about consent and have specific words and ways to phrase things to prevent miscommunication. Some general rules surrounding certain activities like a couple things weren't allowed because it's too difficult to properly sanitize or could be too much of a physical risk (like knife play falls under both).

The actual sex part though it had two floors. Areas were set up for "scenes" on both floors but the upper floor was mostly for chill vibes, cuddling, socializing, and things that took a bit more time to set up like big rope play scenes. Lower floor was where most of the sex-sex happened it had more beds and whatnot.

They provided sheets, towels, cleaning supplies, honestly can't remember if they provided condoms because I always brought my own stuff but can't imagine them not being available. There was also a locker area which is fun everyone showing up and seeing the mix of people changing clothes or like me just getting ass naked out the gate.

Socially it's actually really chill. You go up to someone you're attracted to, chat a bit about the kinds of things they like to do or have done to them, then are basically like "yo wanna hook up" or "not my vibe tonight but you have fun". You get rejected often, you also reject others often too, but there's a ton of people there so more than likely you'll find somebody. I'd say maybe half the time I went I realized I didn't even want to fuck that day so I'd just find people to make out with or, my personal favorite, get involved in a nude cuddle puddle (those are super fun you have no idea whose limbs are whose and the conversation inevitably turns into talking about tattoos. Occasionally someone will be like it's shuffle time and everyone stands up and recompiles in a new configuration).

It cost like I wanna say $30 to go, but they had a sliding scale. There's also a monthly membership fee but that isn't like an automatic thing it's basically I believe for legal reasons they need to be a private club and that's how they do that. The membership was like $10 and I would only go sometimes so I just paid for that the same time I bought an event ticket. There were a variety of event types they'd do but I basically only went to the LGBTQ ones because I'm queer af. Wanted to go to one of the dance party ones but never got the chance before I moved.