Posey Island State Park

This entire one-acre island is a designated Cascadia Marine Trail campsite and is a great site for watching the sunset. It is also a popular stop for lunch with tour groups. Don’t go expecting solitude! The two designated Cascadia Marine Trail campsites are close together and not far from the composting toilet.

Approach: South sandy spit size varies with tides and is best access to the island.

Location: Posey Island is off the north-western corner of San Juan Island about a mile from Roche Harbor.

Sites: 2 sites. Only stay in 1 of the 2 group areas; max of 16 allowed on island per night. This is enforced.

Water: None

Sanitation: Composting vault toilet

Overflow: None

Fires: Fire rings available

Extras: 2 picnic tables

Fees: May 15-Sep.15, $19 first night, $12 additional night. Sept. 16-May 14, $12/night

Special Considerations: Reservations are necessary for camping on dates between May 15 through Sept. 15 each year. Contact Lime Kiln Point State Park, 360.378.2044. For nights that campsites have not been reserved, camping will be first-come, first-serve. Maximum of three consecutive nights camping.

Natural History: Posey Island is flat and sandy, covered with beach grass, brush and a few small scrubby trees, making for a picturesque beach scene. During the summer, the island can be covered with wildflowers. Historically, the spot was a destination for people wanting to picnic and pick bouquets, or “posies.” The island was originally thought to be a part of Pearl Island, and was called Spit Point. Local people, however, knowing better, called it Posey Island. The name stuck and has now been adopted for wider use.

Max Nights: 1

Reservations: No

Latitude: 48.61815
Longitude: -123.167816

Additional Resources: Google Maps Page, Guide Book PDF