part of the high fens reserve remains closed during the spring breeding season of the endangered black grouse ("tetrao tetrix"). during the summer there is a risk of fire in the forest area. boardwalks cross the bogs, permitting access across these areas. paths lead to many areas of the park, and there are signposts to guide visitors through the park. the nature reserve of the high fens is coordinated under the nature division and forests of the walloon region.