The U.S. national parks have incredible hiking trails for every type of day hiker, ranging from easy to moderate to strenuous. Before you go, be sure to research the hike online and see if the distance and elevation is right for you. Know what season is optimal- many of these trails are only accessible in the summer, while hiking in parks like Death Valley and White Sands should be avoided in the summer due to extreme heat. Check the weather forecast right before you go, start early, and be sure