The Mattheiser Weiher consist of the lower mill pond and the upper Herrenweiher and form on 1.5 hectares the "Volkspark Trier-Süd", a recreational and nature reserve.
In the middle of Trier district Weismark lie the Pfahlweiher. A very popular recreational area for young and old. The ponds consist of two large, very idyllic and quiet in the forest fishponds.