Yes. The Discover Pass is required to park your vehicle at state recreation lands and water-access sites managed by Washington State Parks and Department of Natural Resources (DNR). These lands include state parks, water-access points, heritage sites, wildlife and natural areas, DNR campgrounds, trails and trailheads and all DNR-managed uplands. The Discover Pass is required at state parks for day-use visits only.
A Discover Pass is also required on lands managed by Washington Department of Fish and Wildlife (WDFW). This includes water-access and wildlife areas, unless you already have a Vehicle Access Pass issued with the purchase of an eligible hunting or fishing license.