Just 30 miles from the southern gate of Zion National Park, Quail Creek State Park surrounds a 600-acre reservoir that boasts some of the warmest waters in Utah. Its consistently mild climate draws year-round tourists and day-trippers eager to boat, fish, and swim in the clear blue water. The park is also home to a spacious campground, which proves a popular alternative for Zion visitors who want to stay in a red-rock-desert setting.