This is a spa where treatments involve vibration of one kind or another to make you feel better.
Bass room: You sit in the dark in a comfy chair with earprotectors on (they might play soothing music (the earprotectors)) Loudspeakers project very low tones at your body. You feel them in your stomach
and relax.
General vibration area: Vibrating beds, chairs and small devices that can placed upon the body.
Didgeridoo room: You lie on the soft floor and nice people play the dige at your body.
Massage: Experts massage you with their fingers a bit like they are typing on your body. They do this very fast, your body shakes at the many gentle touches.
Floor: because "Tired nerves and muscles are quickly soothed by gentle floor vibrations." as we know from thhgttg
Vibratory scalp treatment.
I'm feeling sick and I so want to relax I dreamed this up in my delerium.