Mountainbike route from Clausthal-Zellerfeld to the Hochharz and back via various paths at the UNESCO World Heritage 'Oberharzer Wasserregal' The tour starts with easy forest tracks through the dark green spruce forests of the Oberharz to the water reservoir Okertalsperre near Altenau. From here it goes uphill on a moderate ascent through a valley into the Hochharz. Once in the Nationalpark Harz, the route continues uphill to the small settlement of Torfhaus. Here is the opportunity to stop in a restaurant and having a beautiful view of the Brocken. After a short descent, there is a short uphill on a demanding trail that leads to a scenic path along a canal of the UNESCO World Heritage 'Oberharzer Wasserregal'. The highest point of the route is reached here. The track continue through untouched nature towards Sonnenberg and then through a valley to the Acker mountain. From here the route leads downhill and then with a great panorama on narrow paths along canals of the 'Oberharzer Wasserregal' back to Clausthal-Zellerfeld.