The lake accommodation cabins are located in the water of internal lakes on the archipelago. These floating buildings are surrounded by both water and forests that partially offer the building a natural shelter. The building is most affected by the moisture from the lake. However, the surrounding forests provide partial shelter from winds and solar radiation. The floating unit has to be weather protected.

The lake cabin has a cube design that provides good stability to the building. The floating part of the cabin is constructed of polystyrene and assembled with poured concrete. The final finish on the floating unit is protecting itself from water and frost damages. Also the building is fixed by two concrete columns that are attached to the bottom of lake. These disable any horizontal movement and tilt but allow vertical movement for the building in case of rising water level. The facade finishing materials are both a double-layered vertical wooden cladding and zinc-titanium sheeting that coincides with the slope of the zinc-titanium covered roof. To protect the building from high humidity levels and possible moisture damage, the facades and roof are fully ventilated. This ensures an uninterrupted air-flow that creates a constant drying process under the external finishing layers. The building is provided with shading devices that are designed to control the penetration of solar radiation.