A New England company has made a portable sauna called the Surf Sauna that you can hitch onto your truck and literally take anywhere.
Every sauna is built to the buyers specifications. Get one big enough for eight people or small enough for you and a friend. Surf Sauna will outfit the sauna to be taken off-road, hold surfboards, or anything else you think might be awesome on a trailer-sized sauna.
The inspiration came from necessity; searching for big waves isn't always in a warm climate, so these surfers/imagineers thought of a solution that would provide an escape from the cold. Even if you don't surf, the sauna would be an awesome addition to any camping trip, skiing/boarding day or just as a daily escape from the cold.
The Surf Sauna is a Portable Sauna That Can Be Used Anywhere
Allen Taylor — March 16, 2014 — Autos
References: surfsauna.net & hiconsumption