Use sunset as your turnaround alarm.
Stonehenge-scale arch at the head of Elephant Canyon.
Heat note: desert country - in summer start at dawn and carry more water than feels reasonable.
3+ liters water, broken-in boots, layers for weather swings, headlamp, real food (jerky, trail mix), trekking poles, first-aid kit, and an early start.
Make it a weekend: The Needles Campground (Squaw Flat) (Camping, 2 mi) · Willow Flat Campground (Camping, 18 mi) · Kayenta Campground (Dead Horse Point) (Camping, 25 mi) · Ken's Lake Campground (Camping, 32 mi)
More hikes nearby: Chesler Park Loop (Hike, 2 mi) · Grand View Point (Hike, 13 mi) · Mesa Arch (Hike, 18 mi) · Upheaval Dome Overlook (Hike, 22 mi)