The chilly weather at their lakeside cottage property has brothers Andrew and Kevin opening their minds and their pores to the ceremony of sweat that is the sauna. But knowing the bros, it’s not just going to be any old sauna – not when Andrew insists that the key to a truly amazing sauna is the ability to jump from the heat directly into the cold lake. They conclude that the only sensible thing to do is to make a sauna with immediate access to the deepest, coldest parts of the lake – the Ultimate Floating Sauna.