Their client in Aland Finland had tried for years to get planning permission for a sauna on their land by a lake. Knowing that the planners allow mobile structures DW designed the sauna shed on a sled which can be slid onto the frozen lake in winter months.
A hole is created for the sauna users to brave the icy waters. Tiina Tervo shot the images.
Tiina perhaps you'll take some more of the interior with the fire going...
