- Twenty-Five Mile Creek State Park consists of 235 acres. The 1,500 feet of freshwater shoreline along Lake Chelan includes a boat marina with docks and piers, a boat launching ramp, and a marine gasoline pump.
Camping facilities include 63 standard sites, 23 utility sites; a group camp and a day use area with six picnic sites. A grocery store and two comfort stations are also located within the park.
Recreation - Popular activities in the park are camping, picnicking, swimming, fishing and boating.
Climate - Washington's climate varies with each region because the Cascade Mountains split the state and alter weather patterns. Twenty-Five Mile Creek State Park, located east of the mountains, receives significantly less rainfall than regions west of the mountains with an average annual precipitation of twelve inches.
Average summer temperatures are 94 degrees maximum and 50 degrees minimum. Because central Washington is landlocked and subject to winter winds, winter temperatures are much colder than those in western Washington.
Twenty-Five Mile Creek State Park is located 18 miles north of Chelan (12 miles north of Lake Chelan State Park), in Chelan County.