I'm pretty sure there are bath-houses LOL. And yes, it's pretty fun at SF (birth city) but it's mostly driven by bedroom scenes so.
From where I am, it's pretty dull during the sunlight. However, when the sun goes down, the people come out. There's a few gay bars here and there and it's usually crowded. Downtown is really crowded at night anyways because there's where the bars are located. I'm not sure about bath houses around here though. There's also gay parade and gay pride day during sometime at June. oh ya, there's also Lavender District which is the "gay" part of the city but it's only like a street not a whole neighborhood. But the neighborhood where I live, there's a lot of gay residents here. (saw some random rainbow flags lol)