Posey Island Marine State Park Campground
Washington, Washington
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As of September 2026, Posey Island Marine State Park Campground is a campground in Washington with 1 campsite. Posey Island Marine State Park Campground is booked through Washington State Parks (GoingToCamp).
- PermitSnag checks Posey Island Marine State Park Campground for availability and alerts watchers when a site opens up.
- Posey Island Marine State Park Campground is located at 48.6187° N, 123.1681° W.
Posey Island Marine State Park Campground reservations and next available dates
Tap sold-out nights to add them to your alert.
September 2026
Campsites at Posey Island Marine State Park Campground
- Loop 1
At a glance: Setting: Meadow.
Things to do: boating, hiking, photography.
All sites at Posey Island Marine State Park Campground, as listed by Washington State Parks (GoingToCamp)
Every site is in the Campground loop.
| Site | Type |
|---|---|
| Campground | Loop |
About Posey Island Marine State Park Campground
Posey Island Marine State Park is popular with kayak groups and porpoises, but, depending on the day, you may also have the place to yourself. Though Posey seems barren at first, a thorough perusal reveals meadow grasses, ancient Yew trees, bright orange lichen and wildflowers blooming in season. Photographers and painters have found endless creative opportunities here. The park is a 1-acre camping park with 1,000 feet of shoreline. Posey Island is part of the Cascadia Marine Trail. There is no potable water on the island, and visitors must pack out what they pack in.
Washington state parks and Tacoma Power (GoingToCamp) campground cancellations →
Posey Island Marine State Park Campground FAQ
How hard is it to get a campsite at Posey Island Marine State Park Campground?
Posey Island Marine State Park Campground is rated "Moderate to Book" based on historical demand. With 1 sites available, you have good chances of finding availability, especially on weekdays.
How do I find last-minute availability at Posey Island Marine State Park Campground?
Cancellations happen frequently at Posey Island Marine State Park Campground, especially 1-2 weeks before check-in dates. PermitSnag monitors availability 24/7 and sends instant alerts when sites open up due to cancellations. This is often the best way to snag popular campsites.
How many campsites does Posey Island Marine State Park Campground have?
Posey Island Marine State Park Campground has 1 campsites.
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