Habitat: A group of 83 islands in the San Juan archipelago, totaling 454 acres. Islands are catagorized into four major habitat types: reefs, rocks, grassy islands, and forested islands.

Recreation and Education: Wildlife observation, study, and photography are allowed on Matia and Turn islands. Moorage and camping are allowed on Turn Island and on a 5-acre designated campground on Matia Island. One-mile wilderness trail on Matia Island. All other refuge islands may be viewed from boats, but are closed to public access. Visitors should stay at least 200 yards offshore to avoid flushing adult birds off nests.

Special Note: Two of the islands (Matia and Turn) have considerable public use and are managed by cooperative agreement with Washington Department of Parks and Recreation. On Matia Island, only 5 acres are considered Marine State Park, with the remaining 140 acres included in the San Juan Islands Wilderness.