The surface area of the Salish Sea (saltwater) is approximately 18,000 sq. km. (or about 7,000 sq. miles). [4] Within the Salish Sea there are hundreds of islands (or even thousands, depending upon one’s definition of an ‘island’ (see discussion on island counting, below). The deepest point of the Salish Sea is 660 m., in Jervis Inlet. The highest point of the surrounding basin in Mt. Rainier (4,392 m.).
