- The Maury Island Aquatic Reserve is located in central Puget Sound and includes 5,530 acres of state-owned aquatic lands in Quartermaster Harbor and along the eastern shoreline of Maury Island. Designated in 2004, the reserve protects extensive eelgrass beds, mudflats, forage fish spawning grounds and includes an Audubon Important Bird Area. The Aquatic Reserve is also a popular recreation area with numerous adjacent public access areas managed by King County Parks and Vashon Park District.