This is our go-to date night place. There is always a Groupon so for something like $20 we spend an hour in various saunas and spas, which are separated by sex. Then we meet up in the common area, where we can choose from the red clay ball room, the jade room, the cold room is my personal favorite between all the other rooms. Be sure to hydrate ahead of time so you don't feel sick after all the saunas and heat.
The only drawback is that that the spas (hot, cold and warm tubs) require you to be naked. Not a huge deal, since they single sex only but if you're uncomfortable being naked, this place isn't for you.