Use sunset as your turnaround alarm.
Everything about this one is backwards from a normal Zion hike. You start on top of the plateau and walk mostly level through ponderosa and pinyon-juniper to the rim, so you get the long look down into Zion Canyon without the climb that used to come with it. The cost is the drive: the East Mesa trailhead sits at the end of high-clearance dirt roads off North Fork Road that turn to mud after rain and through much of winter and spring. Park only in the marked spaces, because they tow.
Looks DOWN on Angels Landing. Via East Mesa trailhead while Weeping Rock side is closed.
Heat note: desert country - in summer start at dawn and carry more water than feels reasonable.
2 liters water, trail shoes, sun layer, snacks, small first-aid kit.
Official figures differ. NPS lists the East Mesa route as 6.8 miles round trip with about 300 feet of gain (NPS). Our distance and gain come from GPS tracks, so treat both as approximate.
Make it a weekend: South Campground (Zion) (Camping, 7 mi) · Watchman Campground (Camping, 8 mi) · Lava Point Campground (Camping, 10 mi) · Kolob Reservoir (Fishing, 14 mi)
More hikes nearby: Riverside Walk (Hike, 3 mi) · The Narrows (Bottom-Up) (Hike, 3 mi) · Angels Landing (Hike, 3 mi) · Emerald Pools (Hike, 4 mi)