Goblin Valley Three Kings Trail is a premier hiking destination in Hanksville, Utah, covering 3.5 miles with 200ft of elevation gain. Stats: 3.5 miles, 200ft gain, Easy. Type: Loop. Surface: Sand/Slickrock. Time: 1-2 hours. Fee: $20 UT park fee. Dogs: Yes. Permit: No. Wildlife: mule deer, coyotes, ravens, side-blotched lizards, desert cottontails. Best seasons: Spring and fall for comfortable temps; summer mornings only — sandstone radiates intense heat by 10am. Goblin Valley's Three Kings trail wanders among thousands of mushroom-shaped hoodoos eroded from Entrada sandstone — an alien landscape that doubles as the filming location for Galaxy Quest. Pack plenty of water — desert and high-altitude trails demand more hydration than you expect. Layers are essential above 10,000 feet. Leave No Trace: stay on designated trails, pack out all waste, and respect wildlife and other visitors.