Cherry Creek State Park is a state park in Arapahoe County, Colorado, United States. The park consists of a natural prairie and wetland environment with an 880-acre reservoir at its center which is shared by powerboats, sailboats, and paddle craft. An imported-sand swim beach is situated on the north-eastern side along with ample parking. The park has 12 miles of paved roads and 35 miles of multi-use trails open to runners, cyclists, and horseback riders.