Twenty-Five Mile Creek State Park is a 235-acre inland waters camping park on the forested south shore of Lake Chelan. The park separates the mountains from the lake and is surrounded by spectacular scenery. With its modern marina, the park affords visitors excellent boating access to the upper reaches of Lake Chelan. Constructed by Mr. Dave Davis, the park was operated for many years as a private resort. State Parks acquired it in 1972 and continued to operate it as a private resort under concession contracts with various tenants. Since 1988, park staff has operated the park.