The Schalkenmehren maar is the largest of the three Daun maars. Here, you can not only enjoy nature and the fresh air during your walk, but can also cool off in the maar. You also have the option of fishing and exploring the maar by boat.
The Obermaubach reservoir in the municipality of Kreuzau is a paradise for all kinds of water sports enthusiasts; you can go rowing, pedal boating or canoeing.