Zion National Park

The "subway" slot canyon in Zion National Park

The "Subway" slot canyon

Cliffs, slot canyons, and dizzying views: This southwestern Utah park has them all. Two classic Zion experiences: hiking the 5.4-mile (round-trip) West Rim Trail to Angels Landing and exploring one of the country’s best slot canyons in the 16-mile (one-way) Virgin River Narrows.