The 100-mile White Rim Road loops around and below the Island in the Sky mesa top and provides expansive views of the surrounding area. Four-wheel-drive trips usually take two to three days, and mountain bike trips usually take three to four days. Under favorable weather conditions, the White Rim Road is moderately difficult for high-clearance, four-wheel-drive vehicles. The steep, exposed sections of the Shafer Trail, Lathrop Canyon Road, Murphy Hogback, Hardscrabble Hill, and the Mineral Bottom switchbacks make the White Rim loop a challenging mountain bike ride, and require extreme caution for both vehicles and bikes during periods of inclement weather. During high water conditions on the Green River, sections of road on the west side can flood, making a complete loop impossible.