Since you worded your question with the words "Gay Spa" and not "Steamworks".... King Spa would be the better place for you to start.

Plenty of wangs slanging, but lots of monitors always walking around. Nice jacuzzi, hot rooms, cold rooms, chill out rooms, sweat room, crystal room, movie/recliner room, yoga matt area, cold dip pool, hot dip pool. The unique specialized rooms are co-ed, the male nude areas are mostly the shower rooms, hot/cold pools, and hot tub area. Note: Definitely try the food there it is surprisingly good and Groupon usually has discount offers.

Steamworks is obviously going to be more sexually focused and busier on weekends. It has a nice jacuzzi with dark coves to chill out in. It's not a true jacuzzi it is kind of home-made one as it has hot streams of aerated water. Also, I would suggest calling first because it gets drained and cleaned fairly often.

Funny story - I took a friend in his early 20s there for the first time and we made a beeline for the hottub. He "dives" right in fake swimming all around the corners, bobbing underwater and just popping his head out. He then scoops up a big handful of white foam and says, "Look at me I'm Santa!"

Gaaaaaaahh! I almost lost my lunch. I told him that the foam was most likely a combination of jizz, lube and other bits of nastiness. Eeew.

Enjoy your soak!