If you come from Aachen and enjoy jogging, cycling, horse riding or long walks, you will have long since discovered the Wurmtal. Numerous forest, riding and field paths meander through the "Wurmtal" nature reserve from Herzogenrath to the Aachen Soers. The approximately 21-kilometre route starts at Ponyhof Zintzen and leads right through the 445-hectare nature reserve, which is characterized by meadows, woodland and farmland. The river valley is largely characterized by free-swinging meanders of the Wurm in the open, often agriculturally used floodplain. You will also pass several historic mills and Wilhelmstein Castle, which towers high above the Wurmtal valley. Built as a medieval border fortress, the castle ruins are now the main attraction in the Wurmtal recreational area and the restaurant located there is a great place to take a break.