Your Utah adventures begin here! Holiday River Expeditions offers multi-day whitewater rafting trips on the Colorado, Green, San Juan and Yampa rivers. From beginner to expert level, 2 to 8 days. Enjoy outfitted and guided mountain biking trips on the White Rim Trail, the Maze and San Rafael Swell 3 to 6 days. Full-service guided backcountry adventures for families, groups, women's river & yoga retreats and high adventure.