Solitude: Take time for reflection in this rarely crowded park.
Radical rapids: Experience some white-water adventure in Cataract Canyon on the Colorado River.
Native American artifacts: View rock art and Ancestral Puebloan dwellings in the park.
Last Hold Out for Wilderness: Walk, raft, or drive through some of this country's wildest, most untouched country.
Bighorn sheep: Snap a photo of them grazing along the roadway.