In the midst of towering red sandstone rocks, the Felsenweiher was once created for rearing carp. Since the pond was not profitable, breeding was abandoned and the small pond quickly became a popular destination for the population.
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.
The artificially created lake in the 1970s is one of Echternach's main attractions. The approximately 4km circular path around the lake is highly recommended.