If you’re looking for an adventure, Black Canyon of the Gunnison is the place for you! This Colorado park is home to some of the steepest cliffs, oldest rock and craggiest spires in North America. You can hike along the rim or in the inner canyon, take a scenic drive along winding roads with hairpin turns and cast a line in the Gunnison River for outstanding trout fishing. And for those who aren’t faint of heart (and have extensive experience), you can brave the park’s class V rapids in a kayak or scale its vertical walls. Photo by the National Park Service.