The park’s longest hike is a 7.2 mile loop, about 1/2 of which is on slickrock sandstone, that starts at the north end of the scenic drive. It goes into the heart of Devils Garden, a labyrinthine area perfect for adventurous types to do some off-trail exploration. The loop passes six major arches, including Landscape Arch, only .8 mile in. Most hikers turn around here, where the trail goes from wide and flat to a slickrock track. Continue on the loop though and you’ll get to Double O Arch, two arches stacked a top each other.