Explore a slot canyon in Utah

The San Rafael Swell, a 2,000-square-mile sandstone slab west of Moab, looks like, well, a lot of rock. But descend into its labyrinth of slot canyons, carved by rain and runoff and polished by wind, and you’re in a whole new world. You’ll twist your way through bacon-striped stone passages, and scramble, squeeze, or even swim through unforgettable narrows. This is remote country, yet you’ll feel like you’re at the center of the action. Moab Cliffs and Canyons: day trip $175 Apr–Sep, including lunch and gear; beginner trips available; cliffsandcanyons.com