Posey Island Marine State Park
Quick Facts
0Price
Varies
Booking
Reservable
Sites
2 campsites
Season
Year-round
Cell
Unknown
Pets
Check Policy
Quick Facts
0Price
Varies
Booking
Reservable
Sites
2 campsites
Season
Year-round
Cell
Unknown
Pets
Check Policy
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What Campers Say
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Based on 5 reviews
14 Google reviews
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"Reviews emphasize a beautiful, quiet, classic San Juan Islands kayak campsite with two primitive sites, a composting outhouse, good beach access, and strong paddler appeal. Visitors repeatedly note lack of potable water and limited capacity; many reviewers rate the site very highly for scenery and beachcombing."
Campground Map
Posey Island Marine State Park
48.6188, -123.1681
Best Time to Camp at Posey Island Marine State Park
Mother Nature keeps things interesting here—the island's exposed position means wind is a frequent companion, adding drama to your adventure. Visit during shoulder seasons like March for an almost guaranteed private island experience, though you'll want to pack warm layers for those crisp marine breezes. Smart paddlers always check marine weather and tide forecasts before setting out, ensuring your island getaway is memorable for all the right reasons.
Summer offers best weather but small island can feel crowded and remains exposed/windy.
Shoulder seasons are quieter and appealing for paddling and solitude.
Spring offers wildflower meadow, quieter paddling and good shoulder‑season conditions.
Exposed position and rough seas limit winter access and comfort; winter use is low.
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