So the concept is called "Float On" and it's purpose is to assist your brain and its sensory overload. It is supposed to calm your mind and your body; making you reach a state of tranquility; mirroring something like a fetus in a womb... gravity and care free.
$40 gets you a 90 minute session - available ONLY in Portland...
This snazzy picture from Float On's website answers a lot of the basics if you're interested!
Address
4530 SE Hawthorne Blvd
Portland, OR 97215
desk@floathq.com
(go to our about page if you're looking for someone specific)
Phone
503.384.2620