Terhills is the main gateway to the National Park Hoge Kempen and is located on the former site of the Eisden coal mine. In the National Park you can enjoy surprising landscapes of green hills with spectacular panoramas, including the most beautiful view of Belgium. There are still a few buildings left from the mine, including the two head-frames of the mine shafts. In the meantime, the remaining mining heritage has been protected as a monument.

The whole area is still fenced, because the area was not accessible to visitors in the past. Terhills is the ideal place to start your walk and explore the National Park Hoge Kempen. There are 3 different walking routes: The green route (3.6 km) takes you in one hour over the long slag heap to the panorama point.

The blue route (5.4 km) goes to the panorama point and around the small pond of the Terhills Cable Park, a unique water-skiing park.

The purple route (9.5km) goes all the way around the large pond and gives you a beautiful panorama of both the long slag heap and the twin slag heap.