Instead of say this is a sauna, this is much more like "Hatten."
It's Japanese culture, it's a much more simlpe sauna, may not have a lot different facilities, just simple maze, dark room.
Here have a steam room, but no hot tub and sauna.
Here is a karaoke room, just ignore the sign of "staff only" on the door, push the door, you can take a rest and sing or listen other guys singing.
This sauna is the only one have different activities for now.
You can follow thier facebook to know the activities, unfortunately it only has Mandarin, why not try to send a message to ask for the activiy details.
Here are usually crowd of bears.
If you are addicted to bears or you are a bear, this it is that place you can show your body.
Of course other sauna also accept bears, but this is the only one place, people visit here for warm, soft, hairy hugs.
Here open 24 hours on weekends, but not suits for overnight.