The rule here is the opposite of everywhere else in red rock Utah: there is no set trail, and you are allowed to walk wherever you want among the goblins. They are Entrada Sandstone, laid down about 170 million years ago beside an ancient sea and eroded since into the shapes you see. Canyoneering routes run out of the surrounding country, and the Little Wild Horse slot is five miles up the road if you want to pair the two. It is also an International Dark Sky Park, so plan to stay past sunset.
Do this: Free-range wandering among goblins, canyoneering, dark-sky stargazing
Family note: THE best natural playground in Utah - kids run wild
Fees and hours: stateparks.utah.gov
Add to the trip: Goblin Valley Free Roam (Hike, 0 mi) · Little Wild Horse & Bell Canyon (Hike, 5 mi) · Grand Wash (Hike, 34 mi) · Hickman Bridge (Hike, 34 mi)