Big Rock Adventure operates from Big Rock Candy Mountain near Marysvale, offering whitewater rafting on the Sevier River—described as the longest whitewater trip in the canyon—with experienced guides serving families, youth groups, school groups, and corporate events. The company also operates lazy river float trips on the Sevier River for a relaxed experience, canopy zipline tours at Big Rock Candy Mountain, and UTV rentals on the Paiute ATV Trail, one of America's top-rated off-road systems with over 2,000 miles of backcountry riding through the Tushar Mountains and scenic canyons. Family-owned and operated, Big Rock Adventure operates seasonally from May 23 through September 7, with tours available by request after that date.