Dan Hisel projected and built himself The Cadyville Sauna which was designed and constructed along the Saranac River in upstate New York. It is a compact structure, covered with mirrors. It is built up against a cliff, and the wall of rock forms one interior wall of the sauna. Twenty feet below the sauna the river coils into a deep and powerful whirlpool, spinning reflections of sunlight back up on the rocks around it and the Sauna above it.