Please help me out, honest question, not trying to troll or be stupid :/

Hey guys going to my first gay bathhouse (steam works Berkeley). I'm finally old enough and tho I don't classify as gay I am a bit bicurious. I am a voyuer and was wondering if bathhouses would be appropriate setting for watching specifically this one in Berkeley. My main concern was can I get an std or any disease by coming to a bathhouse. I won't have unprotected sex, I won't have sex at all even, just use the sauna hot tub, walk around looking to jerk off while watching. I'm sorry if this is a dumb question just don't know and thought you guys could help, thank you!