Pioneer Park in St. George is a mix between Goblin Valley State Park and a slot canyon. What a great place for the kids to play around and explore in. The large red rock boulders are easy to climb on and there are several that are close enough to make small little slot canyons for exploring. As you explore the area, be sure to check out the old hiding spots build into the rocks. If you like rock climbing, there are also several areas to do some bouldering.
355 East Red Hills Parkway
St. George, UT 84770