|Oakland Bay is a small, relatively broad and shallow estuary approximately four miles long and ¾ of a mile wide with water depths averaging 10-35 feet. A large area of the foreshore is exposed to air at low tides. This inter-tidal zone is predominately mud flats with narrow deeper channels. Due to the restrictive nature of Hammersley Inlet, the long narrow waterway linking the bay to the Puget Sound Basin, the water in Oakland Bay has high refluxing, low flushing and high retention rates. There are nine major creeks: Deer, Cranberry, Campbell, Johns, Uncle John, Malaney, Shelton, Mill and Goldsborough. The drainages of these creeks, together with the shoreline drainage have been used to define the Oakland Bay Action Plan Focus Area.