Jarrell Cove State Park sits on Harstine Island in South Puget Sound, offering 40 wooded campsites at 167 feet elevation. The small, well-maintained campground centers on a sheltered saltwater cove with docks, mooring buoys, and shore power, drawing boaters and kayakers. Sites are reservable, fees unknown.
Marine campground with a mix of tent and RV sites, a paddle‑in/primitive option and a larger group campsite.
Weather and SeasonsSummer delivers the best conditions: mid-60s to mid-70s°F days, 50s at night, and calm seas ideal for paddling and island hopping. Water stays cold year-round, around 45–55°F, so most visitors boat or kayak rather than swim. Long daylight hours peak wildlife viewing. Seals, shorebirds. And the cove stays sheltered even when the sound kicks up. July and August fill quickly; reserve ahead. Cool Puget Sound breezes keep things comfortable but bring layers.
Natural Features and SceneryThe park's 67 forested acres slope down through dense conifers and moss to nearly 3,500 feet of protected shoreline. The cove's calm, opal-tinted water hosts 650 feet of dock moorage and mooring buoys. Black-tailed deer browse the understory, shorebirds work the tideline, and seals appear offshore. Low tide exposes tide pools and beachcombing zones along the shore.
Geological RegionSouth Puget Sound (Harstine Island) - marine/coastal Puget Sound environment
Scenic ViewsMany campsites sit on a hillside with semi-private clearings and partial views of the cove; lower hillside sites and those near the main dock offer the best water proximity and views.