The Zen trail is a beautiful 6.3-mile loop in St. George, Utah. For an intermediate ride, it’ll take just under 3 hours and is an interesting but not too challenging trail. Distinguished by distinct rock formations and caves, it’s a great place to check out. You won’t be tasked with many obstacles, and the trail is pretty well maintained. However, scenic as it is, it won’t offer the elevation challenge that some advanced mountain bikers may be looking for.