From the Siegelsknippen hiking car park, a long forest road leads you deep into the woods – the noise from nearby urban areas is only faintly audible here. Afterwards, it goes in the direction of Lohmar. After passing through the town center, you have the opportunity to enjoy a cozy stop by the river. After crossing the Agger meadows, the entrance to the Wahner Heide nature reserve begins. A narrow path leads you uphill past Kronenweiher, which is home to toads, newts, and grass snakes. The route runs along the edge of the forest and offers a beautiful view of the open heath and stout pines. In the middle of the forest lies the idyllic Leyenweiher, where benches invite you to rest. With a bit of luck, you may spot ducks, moorhens, or herons hunting. The route leads again through the forest with its mighty, old trees and past the Aggerstadion along a floodplain landscape towards Siegburg. After crossing the Agger once more, you reach the species-rich nature reserve "Gagelbestand," a heath moor with some beautiful ponds and aromatic fragrant shrubs. In a wide arc, it goes back into the Lohmar forest, where fish ponds and dense forest make you forget the noise of nearby federal roads and motorways. A broad forest path leads you straight to Stallberg, later a pretty path winds on to Kaldauen. Benches invite you to rest again. After some changes of direction, you return to the hiking car park.