Les Mason State Park gives visitors cool, clear water and a smooth cobble beach on Whitefish Lake, with 585 feet of sand and gravel lakeshore. It is a popular day-use stop for swimming, boating, fishing, paddleboarding, bird watching, and picnicking. A canoe and kayak launch provides lake access, and boat rentals are available. Vault toilets and parking are provided. The park is day-use only with no camping. It is open 8 a.m. to 8 p.m. during peak season (Memorial Day through Labor Day), with winter access limited to foot traffic. RVs and towed trailers are not recommended.