Blake Island Marine State Park
Are you a boater craving island time? Do you paddle the Puget Sound on your days off? Or are you visiting Seattle and eager to explore Tillicum village and the island or camp overnight but don't have a boat? Argosy cruises is your ticket to the island.
Accessible only by boat, Blake Island offers a change of pace not far from Seattle. In addition to the Argosy Cruises excursions, this destination features blue waters, peaceful trails, driftwood-scattered beaches and views of the city and Mt. Rainier.
Once off the boat, let your boots or bicycle take you down miles of trail to the island's interior, where forest animals and birds make appearances. Or stay near the water and fish, dig for clams in season or go scuba diving. Arriving by human-powered watercraft? Hunker down in one of the Cascadia Marine Trail campsites at the west end of the island for majestic sunsets over the Olympic Mountains.
Whether you're lounging on your vessel, kayaking the Cascadia Marine Trail, or enjoying Tillicum as part of a tour, Blake Island will exceed expectations.
Blake Island Marine State Park is a 1,127-acre, marine camping park with 5 miles of saltwater beach shoreline. The park is reachable only by tour boat or private boat. Argosy Cruises provide Blake Island Excursions offering guided trail hikes, kayaking and light meals at the Tillicum Longhouse Café. Click here for more information and booking: Argosy Cruises' Blake Island Excursion.
Use our interactive ADA recreation map to search for other state parks with ADA amenities and facilities.
Picnic & day-use facilities
Two picnic shelters with a fire circle are available. Due to current WA State phase restrictions; all day-use facility reservations are restricted to a 50 person maximum. No electricity is available. Fires are permitted only in designated fire circles at individual campsites. Barbecue grills are located in the day-use area.
- 7.5 miles of bike trails
- 8 miles of hiking trails
Water activities & features
- 1,500 feet of moorage
- Fishing (saltwater)
Other activities & features
- Beach exploration
- Bird watching
- Interpretive activities
- Mountain biking
- Fire circles (2 sheltered)
- Horseshoe pits (2)
- Volleyball field
- Wildlife viewing
The history of the Trimble estate appears on a sign at the site of the former Trimble mansion. Blake Island was once the private preserve of the William Pitt Trimble family. Native plants are interpreted in signage on the nature trail.
- Argosy Cruises provide Blake Island Excursion and Evergreen Excursion. Tours include guided nature walks, kayaking and drop off for overnight camping during the summer season. A small café in the Tillicum longhouse is open from Memorial Day to Labor Day, annually. For reservations/information, call Argosy Cruises (206) 623-1445 or visit Blake Island Excursions . Evergreen Excursions
- Kayak rentals available through Vashon Adventures in the main day-use/harbor area.
- Firewood gathering is not permitted on the island.
- No trash receptacles are available. This park is strictly pack-in / pack-out for all trash.
- All professional filming and photography require a permit. Permits take up to 60 days to process. Click here for more information Film and Photography Permits Information
- A recreational license is required for fishing and shellfish harvesting at Washington state parks. For regulations, fishing season information, or to purchase a recreational license, visit the Washington Department of Fish and Wildlife.
- Printable park brochure (PDF).
Located in Kitsap County on Puget Sound, Blake Island offers 1,500 feet of moorage dock and 24 mooring buoys. Electrical service is available at the docks for a $6 fee. Trash receptacles are not available. This is a pack in- pack out park.
A boat pumpout is also available.
Moorage fees are charged year round for mooring at docks, floats and buoys from 1 p.m. to 8 a.m. All moorage is first come, first served. Daily and annual permits are available. For more information, call (360) 902-8844.
Latitude: 47D 32' 33" N (47.5425)
Longitude: 122D 28' 56.99" W (-122.4825)
This facility is open year round and is a public marina with an accessible pumpout. An EMP SaniSailor pumpout and a portable dump station are available on the pumpout float. Access to this pumpout is limited to vessels with a length of no more than 40 feet.
Latitude: 47° 32' 34.81" ( 47.543)
Longitude: 122° 28' 57.08" ( -122.48252)
The campground has 44 standard sites, three Cascadia Marine Trail sites, one marine dump station, four restrooms (one ADA) and one shower area. Selected campsites are available for reservation. Check reservations for availability and booking. Additional campsites are first come, first served. All campsites in the west campground are restricted to a six person maximum per site. During winter months, the water is turned off in the west campground and the restroom is closed. A vault toilet is available.
Check-in time is 2:30 p.m.
Check-out time is 1 p.m.
A group camp is available by reservation. Group sizes are limited to 50 people.
For fee information, check out our camping rates page.
Services & supplies
T-Shirts, snacks, ice cream, fire logs are available at the park store located in the park office.
Additional park information
- No trash receptacles; all trash is pack in and pack out. You must take all trash with you when you leave the park
- Firewood is not available and gathering of wood at the park is not allowed. Fire logs, charcoal and propane is available at park office. Call park prior to visit to confirm availability.
- Food lockers are available at selected sites and are encouraged to be used. This will help reduce local wildlife from entering your site.