Dosewallips State Park is a 425-acre, year-round camping park with 5,500 feet of saltwater shoreline on Hood Canal and 5,400 feet of freshwater shoreline on either side of the Dosewallips River. The park is unique in that it offers both freshwater and saltwater activities. All camp areas are grassy and located in scenic, rustic settings.

Posey Island State Park is a small, one-acre marine camping park with 1,000 feet of shoreline. It is located a quarter mile north of Pearl Island, near Roche Harbor, San Juan Island. Posey Island is part of the Cascadia Marine Trail. All onshore campsites are for the exclusive use of boaters arriving by human- or wind-powered watercraft.

Potholes State Park is a 640-acre camping park with 6,000 feet of freshwater shoreline on Potholes Reservoir (also known as O'Sullivan Reservoir). Potholes Reservoir is often confused with the Pothole Lakes themselves, which are a 30- to 45-minute drive from the park. The terrain is desert with freshwater marshes.

Potlatch State Park is a 57-acre camping park with 5,700 feet of saltwater shoreline on Hood Canal. The park's beautiful grounds are home to a variety of activities, from interpretive programs for kids to boating and shellfish harvesting.

Rainbow Falls State Park is a 139-acre camping park with 3,400 feet of freshwater shoreline on the Chehalis River. Situated in stands of old-growth forest, the park features a waterfall and a small fuchsia garden.

Rasar State Park is a 169-acre camping park with 4,000 feet of freshwater shoreline on the Skagit River. Wildlife observation opportunities, especially for eagle watching, are excellent, particularly in early fall and early winter.

Reed Island State Park is a 510-acre marine park located east of Vancouver.The island offers bird watching, boating, beach walking, camping and picnicking. The park is part of the Columbia River Water Trail.

Riverside State Park is a 10,000-acre camping park along the Spokane and Little Spokane rivers in Eastern Washington. The park supports a wide variety of recreational activities and is rich in history. Freshwater marshes, running rivers and beautiful countryside make up the terrain. The park also includes the Nine Mile Recreation Area, which is available for camping, picnicking, swimming, fishing and boating.

Rockport State Park is a 670-acre park in an ancient forest. The old growth was never logged, and the entire ecosystem remains in place, creating a rare, natural forest with a canopy so dense that minimal sunlight penetrates to the ground. The park stands at the foot of Sauk Mountain, which has an elevation of 5,400 feet and a steep but climbable trail to the top.

Sacajawea State Park is a 284-acre inland waters, day-use park at the confluence of the Snake and Columbia rivers. It features 9,100 feet of freshwater shoreline. The area is spread out with a big sky and excellent views of the two rivers as they flow together.

Saint Edward State Park is a 316-acre day-use park with 3,000 feet of freshwater shoreline on Lake Washington. Once a Catholic seminary, the park's rich history reflects in its grounds and architecture. Walks along the undeveloped lakeshore are peaceful and give the visitor many opportunities for nature study.

Saltwater State Park is a camping park featuring 1,445 feet of saltwater shoreline on Puget Sound. The park is located halfway between the cities of Tacoma and Seattle. The cities jointly and literally buried a hatchet in the park as a symbol of an end to their mutual competition. The park offers beautiful views and wildlife-watching opportunities.

Scenic Beach State Park is a 88-acre camping park with 1,500 feet of saltwater beachfront on Hood Canal. The park is known for its wild, native rhododendrons and stunning, clear-day views of Hood Canal and the Olympic Mountains. ADA-compliant paths lead visitors to a country garden, gazebo, rustic bridge and huge trees. A wide variety of birds and wildlife call the area home. The park is ideal for those who appreciate outstanding natural venues for outdoor activities.

Schafer State Park is a 119-acre camping park on the Satsop River, midway between Olympia and Ocean Park. A big attraction to park users is the abundant fishing for steelhead, cutthroat trout and salmon on the Satsop River. Wading and swimming in the shallow water make it an equally attractive site for family gatherings. Buildings are constructed from native stone.

Seaquest State Park is a 475-acre, year-round camping park near Mount St. Helens. The beautifully forested park claims over a mile of Silver Lake shoreline, a shallow wetland lake. Enjoy one mile of wetland trail and six miles of woodland trails for hiking and bicycling; see spectacular views of wildlife, Silver Lake and the surrounding area. There are also children's play areas and playing fields. Great seasonal fishing, boating and swimming are available nearby.

Sequim Bay State Park is a year-round, 92-acre marine camping park with 4,909 feet of saltwater coast in the Sequim "rainshadow," just inside Puget Sound on the Olympic Peninsula. The bay is calm, the air is dry and interpretive opportunities await visitors.

Shine Tidelands State Park is a 13-acre day-use park with 5,000 feet of tideland along Bywater Bay. At high tide, there is little beach available to the visitor.

Skagit Island State Park is a 24-acre marine camping park in Skagit Bay. The island is forested with occasional meadows, rock outcroppings, attractive beaches and a land trail.

South Whidbey Island State Park is a 347-acre camping park with 4,500 feet of saltwater shoreline on Admiralty Inlet. Park features include old-growth forest, tidelands for crabbing and clamming, campsites secluded by lush, forest undergrowth and breathtaking views of the Puget Sound and Olympic Mountains. The park offers a unique outdoor experience.

Spencer Spit State Park is a 138-acre marine and camping park situated on Lopez Island in the Strait of Juan de Fuca. The park is named for the lagoon-enclosing sand spit on which it rests.

Spring Creek Hatchery State Park is located in the Columbia River Gorge National Scenic Area, in southeast Skamania County, along the Columbia River. Spring Creek Hatchery is a premier windsurfing and kiteboarding site in the Columbia Gorge with views of Mount Hood from the shore. The park sits at the entrance to the Spring Creek National Fish Hatchery which offers tours of the facility and other interpretive opportunities for visitors.

Squak Mountain State Park is a 1,545-acre, day-use park just outside of Issaquah and a short 15-minute drive from Seattle. The forested park features miles of trails in wilderness solitude for both equestrians and hikers alike.

Squilchuck State Park is a 288-acre park covered with forests of fir and ponderosa pine. The park sits below Mission Ridge at an elevation of 3,200 feet. A group camp is available by reservations for groups of 20 or more. The Squilchuck Lodge and group camp also may be reserved for day-use events for groups between May and October. The lodge is very popular for weddings, reunions and other group activities.

Steamboat Rock State Park is a 3,522-acre camping park with 50,000 feet of freshwater shoreline at the north end of Banks Lake. Dominating the landscape is a columnar, basaltic rock with a surface area of 600 acres. Two campground areas and a large day-use area are on sweeping green lawns, protected from winds by tall dramatic poplars. The surrounding areas are carpeted with wildflowers, adding to the gray-green brush of the Scablands. A sandy swimming area and boat launches make the area a favorite for visitors who enjoy water-play and want respite from the hot, summer sun.

Steptoe Battlefield is a four-acre, day-use park in Rosalia. This is the site on May 17, 1858, where Lt. Col. E.J. Steptoe led 159 American soldiers in a running fight with a large band of Spokane, Palouse and Coeur D'Alene Native Americans. The American soldiers beat off a series of attacks until night halted the battle. With ammunition almost gone and facing disaster, Lt. Col. Steptoe and his men retreated with their wounded and under the cover of darkness to Fort Walla Walla.