Description of solution
Over the years, a gravel bank between the Loisach and the Kochelsee was piled up due to wave action. To reconect the Altwasser to the Kochelsee the gravel was removed and the old river bed of the Loisach was restored. This allows fish to spawn and live in the old water again.
Estuary of the Loisach into the Kochelsee.