There are a few things you can do to help prevent knee pain when hiking. First, make sure you have the right gear. Hiking boots that fit well and are made from a sturdy material will help protect your knees from rocks and other debris on the trail. Second, be aware of how you’re walking. Try to keep your weight evenly distributed on both feet and use caution when ascending or descending steep slopes. Finally, take frequent breaks during your hike to stretch your legs and hips outwards.