Discovery Princess: 4-Night U. S. Pacific Coast

Los Angeles cruise port is in San Pedro, a harbor neighborhood at the southern tip of the city, about 25 miles from downtown LA and 18 miles from LAX. The port is called the World Cruise Center, and it's the main departure point for Mexican Riviera, Hawaii, and Pacific Coast itineraries.

San Diego is a major cruise port on the Southern California coast, about 120 miles south of Los Angeles and directly on the Mexican border. The B Street Cruise Ship Terminal and adjacent Broadway Pier sit in downtown San Diego along the Embarcadero waterfront, within walking distance of the Gaslamp Quarter, Seaport Village, and the USS Midway Museum.

Ensenada sits on the Pacific coast of Baja California, 80 miles south of the US-Mexico border. It's the closest foreign port to Southern California, which makes it the default quick-cruise stop for ships departing Los Angeles, Long Beach, and San Diego on 3-5 night itineraries.