Use sunset as your turnaround alarm.
Rim walk over the entire Island in the Sky ending at a jaw-dropper.
Heat note: desert country - in summer start at dawn and carry more water than feels reasonable.
Water bottle, sunscreen, hat, snacks, comfortable shoes.
Make it a weekend: Willow Flat Campground (Camping, 5 mi) · The Needles Campground (Squaw Flat) (Camping, 12 mi) · Kayenta Campground (Dead Horse Point) (Camping, 14 mi) · Ken's Lake Campground (Camping, 26 mi)
More hikes nearby: Mesa Arch (Hike, 5 mi) · Upheaval Dome Overlook (Hike, 9 mi) · Chesler Park Loop (Hike, 12 mi) · Druid Arch (Hike, 13 mi)