For the leisure pool area, which is located directly on Lake Bigge, the addition for a new course pool with lifting floor for the local swim club and school sports program had to be planned. It was a no brainer to not impair the impressive views of the Lake Bigge. Therefore, Geising + Böker decided to design a flat roof for the new indoor pool building. The new indoor pool building houses changing and sanitary facilities as a walk-on terrace to the existing structure. This created attractive sun lounging and recreation areas with a view. However, the construction of this new building posed a major challenge: building deep foundations so close to the lake.