The park is situated on Harstine Island, which is connected to the mainland via a bridge, distinguishing it from many other marine state parks that are strictly boat-access only.
The cove provides a natural, sheltered harbor that was historically used by local tribes and early settlers for protection from harsh weather.
The park maintains a dedicated shellfish harvesting area, allowing for recreational clamming and oystering depending on seasonal health closures.
It is part of the Cascadia Marine Trail, a designated water trail that allows for human-powered watercraft camping along the Puget Sound coastline.
Jarrell Cove State Park is a 77-acre marine park located on the northwestern tip of Harstine Island within the South Puget Sound. The park features 3,500 feet of saltwater shoreline, providing significant access for recreational boating, fishing, and crabbing. Visitors can utilize 22 standard campsites and 13 marine boat slips for overnight stays. The grounds include a network of forested trails that wind through second-growth timber, leading to open meadows and viewpoints overlooking the water. It serves as a popular destination for kayakers exploring the surrounding island waterways and coves. The park is characterized by its protected, calm waters, which contrast with the more exposed channels of the Puget Sound.
The wooden dock at low tide, providing a view of the cove framed by the surrounding forest canopy.
Bring a Discover Pass for vehicle access, as it is required for parking in Washington State Parks.
Check the Washington Department of Health website for current shellfish safety alerts before harvesting any bivalves.
Pack water shoes or sturdy sandals, as the shoreline is rocky and covered in oyster shells.
Do not attempt to launch large motorized boats at the small-craft dock; use the designated public boat ramp located nearby on the island.
Campsites are typically available on a seasonal basis with peak demand during summer months; utility availability may be limited in winter.
Pack out all trash, respect quiet hours for campers, and stay on marked trails to protect the fragile coastal bluff vegetation.
