Alder Lake Park is located about 10 miles south of Eatonville on the northern end of Alder Lake, which was formed by Alder Dam in 1945. Our dams generate clean, renewable hydroelectric energy. The park is available to the public for camping, boating, swimming, water skiing, fishing, and day use. The park includes Rocky Point Campground, located about 4 miles east of the main park entrance, and Sunny Beach Point, a 9-acre day-use park about a half-mile east of the main entrance.