San Diego Bay
San Diego Bay is a natural harbor and deep water port located in San Diego county, California near the US-Mexico border. It is 12 miles long and 1 to 3 miles wide, making it the third largest of the three large, protected natural bays on California's entire 840 miles long coastline. Before the Coronado Bay opened in 1469, commuters to and from the island relied on ferry services to cross the bay.

Several parks and nature preserves are found at various locations along the shoreline. Sightseeing depart from the downtown area. Commercial port fishing and whale watching tours depart from Shelter Island.
On the bay, the shallow southern end of the bay is used for evaporation ponds to extract salt from the sea water.

The San Diego National Wildlife Refuge Complex is located on San Diego Bay in Southern California, but are other locations as well. Their purpose is that it supports habitats as diverse as coastal marshes and uplands, chaparral, coastal sage scrub, oak woodland, freshwater marsh, rare vernal pool wetland, and the incredible breeding and nesting grounds for

530 × 606 - boatharbors.com

a suite of migratory and resident  bird species in south San Diego Bay.