Rosario Strait

James Island is one of the San Juan Islands in San Juan County, Washington, United States. It lies in Rosario Strait just off the eastern shore of Decatur Island and west of the city of Anacortes. The entire island comprises James Island State Park of the Washington State Park System. It has a land area of 113 acres (46 ha) with 12,335 feet (3,760 m) of saltwater shoreline. The island has no potable water or residents. It has three different camping areas, each with at least one toilet. The camping areas combine for a total of 13 campsites and are connected by a loop trail. James Island was named by Charles Wilkes in 1841 to commemorate the naval hero Reuben James. The property was transferred from the federal government to the Washington State Parks and Recreation Commission in 1964.

The Burrows Island Light is a lighthouse on the western tip of Burrows Island, facing Rosario Strait, near Anacortes, in Skagit County, Washington.

Decatur Island is one of the San Juan Islands in Washington state, USA, located just east of Lopez Island across Lopez Sound and just south of Blakely Island across Thatcher Pass. Named by the Wilkes Expedition in 1841 for naval officer Stephen Decatur, it is 3.524 square miles (9.127 km²) in area.

Strawberry Island is a small island in the San Juan Islands of the U.S. state of Washington. It is located in Rosario Strait near Cypress Island and closes Strawberry Bay. The island is managed by the Washington Department of Natural Resources. Strawberry Island has long been popular with kayakers. In 2010, due to budget cuts, the Department of Natural Resources prohibited overnight camping. George Vancouver named Strawberry Bay and Cypress Island in 1792, but left this island nameless.

The Secret Harbor School was a private boarding school on Cypress Island in Washington state. It was known for its unique educational approach and natural setting.

Blakely Island (SENĆOŦEN: XEMXEMIȽĆ) in San Juan County, Washington is the sixth largest island in the San Juan Islands of Washington State, United States, encompassing a land area of 16.852 km2 (6.507 sq m). It is separated from Cypress Island to the east by Rosario Strait. The population was 56 persons as of the 2000 census. There is no immediate public access to Blakely Island and it can only be reached by private ferry or boat.

Center Island is one of the San Juan Islands in San Juan County, Washington, United States. It lies off the eastern shore of Lopez Island, between it and Decatur Island. Center Island has a land area of 0.713 km² (0.275 sq mi, or 176.22 acres). The population was officially 49 persons as of the 2000 census.

Center Island Airport (IATA: CWS, FAA LID: 78WA) is a private use airport located on Center Island, in San Juan County, Washington, United States. The airport is owned by the Center Island Association. It was included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.Center Island Airport is a "turf-gravel" runway approximately 1600 feet long by 100 feet wide.

Cypress Island is the westernmost part of Skagit County, Washington and is about halfway between the mainland and offshore San Juan County. It is separated from Blakely Island to the west by Rosario Strait and from Guemes Island to the east by Bellingham Channel. The island has a land area of 5,500 acres (22 km2), and a population of 40 persons as of the 2000 United States Census. The Washington Department of Natural Resources manages about 5,100 acres (21 km2) of the island and leaves the island in a natural state. Cypress is heavily forested and has a system of trails linking various parts of the island. In roughly the middle of the island is a lake of about 7 acres (28,000 m2). On the southeastern corner of the island is a sheltered bay featuring a salmon fish farm. Cypress is not served by ferry and there are no public utilities on the island. The island is a popular destination for kayak trips due its relatively close proximity to the mainland and to the camping available at two sites on the east side. Sheltered anchorages for boaters can be found in Eagle Harbor with public state park facilities.

Deepwater Bay is a saltwater bay of the Salish Sea on the southeast side of Cypress Island in the U.S. state of Washington. It was the site of an unintentional release of aquaculture-raised Atlantic salmon in 2017, the Cypress Island Atlantic salmon pen break, initially blamed on the Solar eclipse of August 21, 2017.

Fortress Island is one of the San Juan Islands in San Juan County, Washington, USA. Located in Lopez Sound, the uninhabited, rocky island has a land area of 3.21 acres (1.30 hectares) and is almost completely devoid of vegetation. It is part of the Turtleback complex, a series of intrusive rocks in Lopez Sound formed out of crystallized molten magma that also includes Bird Rock, Low Island, and others.Fortress Island is part of the San Juan Islands National Wildlife Refuge and is managed by the U.S. Fish and Wildlife Service. As with almost all of the islands in the refuge, human access is prohibited and boats may not approach to within 200 yards (180 m).

Frost Island is an island in the San Juan Islands of the U.S. state of Washington. The approximately 70-acre (28 ha) island has no public electric service or land-line telephone service. There is a water-taxi that runs between the island and Anacortes.The name was given by Charles Wilkes during the Wilkes Expedition of 1838–1842, in honor of John Frost, the boatswain of the expedition's Porpoise.