Some surfers are crazy enough to go out in freezing cold waters, so it makes sense that they would enjoy warming up in their own portable sauna. The Mobile Surf Sauna ($17,950) was made by surfing enthusiasts and craftsman for surfers who love to surf in the winter. It can accommodate 2 to 8 people, and is made from rot resistant antimicrobial Western Red Cedar. The chassis is made form marine grade galvanized and stainless steel. It even comes with a mounted shovel and hi-lift jack. The Surf Sauna sounds like it would even be great just to park in your driveway for a nice winter spritz.