Sea
The Port of San Diego manages the maritime operations of San Diego harbor. Cruise ships arrive and depart from San Diego's cruise ship terminal at the foot of Broadway downtown. Carnival Cruise Lines, Royal Caribbean, Holland America, and Celebrity Cruises have home port cruise ships in San Diego during the Winter season. Popular cruise destinations include Mexico, Hawaii, Alaska and the Caribbean via the Panama Canal. An additional cruise terminal at Embarcadero Circle it set to open in 2010. San Diego's port also manages a significant cargo operation which includes imports from South America, vehicle imports from Germany, Japan and Mexico, and other trade operations.[citation needed]
San Diego is home to General Dynamics' National Steel and Shipbuilding Company (NASSCO), the largest shipyard on the West Coast of the United States. It is capable of building and repairing large ocean-going vessels. The yard constructs commercial cargo ships and auxiliary vessels for the U.S. Navy and Military Sealift Command, which it has served since 1960.
(Source: Wikipedia.org)
