Fantasy Canyon is signed from Highway 45 south of Vernal - the route is along a side road, initially paved, and busy all day with big trucks and other vehicles from extensive oil and gas operations in the area. A left turn after 12.7 miles is followed by five more junctions, all signposted, now along unpaved but still good quality tracks, though they may be impassable after heavy rain. Dozens of little turn-offs lead to drill sites, and the surroundings remain generally unpromising; the only exposed rocks are isolated groups of irregular boulders, not at all interesting. The last section of the route ends at an earthen parking area with BLM sign, register and information board; the formations of Fantasy Canyon start 200 feet south. Primitive camping is permitted at the trailhead, this being a little pocket of public land surrounded by the oil and gas fields.
The formations occur on the north side of a low mesa, and are centered on a narrow ravine about 200 feet long and 20 feet deep at the upper end, extending a little way north and west, where the eroded rocks become more isolated. A half mile trail winds through the area, marked with stones and signs, and visitors are encouraged not to stray from the path in order to avoid damaging the formations. Cross-country travel is allowed a little way southwest, where the rocks give way to rolling hills, shallow washes and scattered hoodoos. Notices are placed beside about 40 named features, with the precise distance across and up, but in some ways it seems best to find one's own. An octagonal bench has been installed in the middle of the ravine, which certainly provides a good place to rest, but spoils the natural appearance. It only takes half an hour or so for a quick walk viewing all the formations, but the site is well worth the journey, and if waiting for optimum light conditions and taking photos from different angles, then many hours could be spent here. Above the rocks are undulating, clayish badlands, a little more colorful, with pale bands of pink, blue and orange.