Port of San Diego.

San Diego is a Pacific coastal city in California, USA, located at the extreme southwest corner of the US mainland, 20 kilometers south of Tijuana, Mexico. The US military has several military bases here, mainly the US Navy, Marine Corps, and Coast Guard. Three aircraft carriers, the Carl Vinson, Roosevelt, and Reagan, are stationed here. It is the only natural good harbor in southern California on the west coast of the United States. The main attractions are Balboa Park, the military port, the old city, the beach, the zoo, the Spanish village, etc. San Diego Military Port is on the west coast of the United States. It is a natural good harbor and the only natural good harbor in southern California. It controls the eastern waters of the Pacific Ocean and is geographically important. It is also a place where many tourists yearn for. The Port of San Diego was built as a US Navy combat base in 1920 and became the main support base for the US Third Fleet after 1980. The eastern part of the naval base is located in the middle of the bay, with a dock line of 16.5 kilometers and a water depth of 6 to 11 meters. The western part of the base is located in the northern part of Coronado Island, at the entrance of San Diego Port, with an amphibious combat base and a naval air station. The headquarters of the US Third Fleet and many of its troops are stationed here. More than half of the fleet's ships, including aircraft carriers and nuclear submarines, use this as their home port.