Place: Giersbergen Length of route: The route is 16 kilometers long. The route can be combined with the black route in Drunen (Loon and Drunen Dunes) of 25 kilometers. Nature of the route: The 16 kilometer long green loop is located in the east of De Loonse and Drunense Duinen National Park. It is a single track of over 16 kilometers long, which winds through the Margriet and along the Hengstven. The route has little altitude differences, making it easier to drive than the black route in the Dunes. The route can be combined with the black route in Drunen (Loon and Drunen Dunes) of 25 kilometers. Marking: The route is marked with wooden poles with green international MTB sign (triangle with 2 rounds). Surroundings: The Loon and Drunen Dunes is a nature reserve between Drunen and Wage on Sand. This nature reserve is close to the Efteling amusement park in Kaatsheuvel. Nature is characterized by forests and contiguous sand dunes. This route has been expanded by the owner of the area, Nature Conservation Association, in cooperation with tour clubs from surrounding municipalities.