Based on common stage traverse constructions we developed an arched structure on which you can pull a membrane with help of a winch over keder profiles, that are common in sailboat construction.

The membrane serves as a protection against weather and noises and noise reflection.
The floor construction is made of pontoons, that are available in the market, and has a wooden planking. The space truss of the traverses and the swimming pontoons are able to carry the burden of the stage technics.

The lake-islands might be connected near the bank with a catwalk with the land or lie anchored in the middle of the water.