Mac Rating: 0.00 | Votes: | Date: 03/06/2026 14:53:00

Tucked between the city of San Diego and the long sweep of the Coronado peninsula, San Diego Bay is one of the most heavily used natural harbours on the West Coast and a defining feature of the southern California landscape. The roughly twelve-mile-long, four-mile-wide protected bay was carved by tectonic action over millennia, with the long Silver Strand of Coronado forming the natural breakwater that has made the bay one of the deepest and best-protected natural ports on the Pacific coast of the contiguous United States. The bay has been a centre of human activity for thousands of years. Indigenous Kumeyaay peoples lived around the bay's shores for at least eight thousand years before European contact, with shell middens still visible at several preserved sites around the bay's southern end. Spanish explorer Juan Rodriguez Cabrillo entered the bay in September 1542 and named it San Miguel Bay (it was renamed San Diego in 1602), establishing the first European contact in what is now California. The modern bay supports an extraordinarily mixed range of activities. The northern bay is dominated by the great Naval Base San Diego and the adjoining Naval Air Station North Island on the Coronado peninsula, together one of the largest concentrations of United States Navy infrastructure in the world. The central bay is the city's working commercial port, with cruise-ship and container-ship operations centred on the Tenth Avenue Marine Terminal and the National City Marine Terminal. Recreational use of the bay is widespread. Several long marinas including the Shelter Island and Harbor Island marinas house thousands of pleasure craft, while sailing, kayaking, paddleboarding, fishing and the popular bay-and-harbour cruises run by Hornblower and Flagship Cruises draw millions of recreational users each year. The shoreline is ringed by some forty-five parks and beach areas, including the celebrated Embarcadero waterfront in central San Diego, the Coronado Tidelands Park and the Imperial Beach Pier at the bay's southern end.