GeoSurveyor
It is not natural, and not wetland per se. It is a "managed pond". But, it may be in process of being restored to wetland soon. South Bay Restoration projects is working in this area. For more info, see South Bay Salt Pond Restoration Project, Eden Landing Phase 2 Project. See the draft Environmental Impact Statement/Report from August 2017. http://www.southbayrestoration.org/pdf_files/Eden%20Landing%20DEIS-R/2_Alternatives.pdf