Established Camping
Posey Island State Park Campground
Posey Island State Park Campground is located near Friday Harbor, WA, offering a setting surrounded by water and rocky shores. Temperatures range from 40°F in winter to 70°F in summer, providing varied seasonal experiences. Nearby, visitors can explore the San Juan Islands National Monument and Lime Kiln Point State Park, known for its lighthouse and whale watching opportunities.
Description
State Park
An itty-bitty island hides in plain sight, between Pearl Island and Roche Harbor in the San Juan archipelago.
Posey Island has two group campsites, each with a sweeping view. Grill up a hearty meal, sit back for a big-sky cloud show or a glorious sunset and enjoy a rare opportunity to do nothing but rest.
Posey Island Marine State Park is a 1-acre marine camping park with 1,000 feet of shoreline. It is located a quarter mile north of Pearl Island, near Roche Harbor, San Juan Island. 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. Camping reservations are required for both campsites, which are for the exclusive use of boaters arriving by human- or wind-powered watercraft.
All campsites are for the exclusive use of boaters arriving by human or wind-powered watercraft. Each campsite can accommodate a maximum of eight campers. This maximum number of campers is strictly enforced due to the small size of the island. No exception. Paddlers and sailors must be prepared to seek other campsites if the campsites are at capacity.
Reservation Info
Reservations for Friday or Saturday nights May 15-September 30 are limited to one site and one night per reservation. Reservations are also limited to a total of any five Friday and /or Saturday one-night reservations per month.
Reservations for Sunday - Thursday nights May 15-September 30 are limited to one site and a maximum of two nights per reservation. Reservations are also limited to a total of six one- or two-night weekday reservations per month.
Campsites are available on a first-come, first-served basis May 15-September 30 on nights when they have not been reserved. No reservations are needed October 1- May 14.
Location
Posey Island State Park Campground is located in Washington
Coordinates
48.61815068 N
123.16781628 W
Access
- Boat-InSites accessible by watercraft.
Stay Connected
- WiFiPoor
- VerizonUnknown
- AT&TAvailable
- T-MobileUnknown
Site Types
- Tent Sites
- Group
Features
For Campers
- Picnic Table
- Reservable
- Drinking Water
- Toilets
- Pets
- Fires
