Twenty-Five Mile Creek State Park is a public recreation area on the western side of Lake Chelan, 15 miles (24 km) northwest of the city of Chelan in Chelan County, Washington.

[2] The 232-acre (94 ha) state park was a private resort that came into state ownership in 1972.

It was operated under lease to various concessionaires until the state took over staffing in 1988.

[3] The park offers camping, a marina, fishing, waterskiing, bird watching, and mountain biking.

[2]