Barcelona cruise port on the Mediterranean Sea, is the leading European cruiser port and the world 4th busiest, it has an excellent location for transfer services, it is located at the end of famous Las Ramblas, very close to Columbus statue in the center of Barcelona.
Most of the cruises arrive to Adossat quay cruise terminal, opened in 2007, it is the center of operations for the major cruises shipping companies and is composed of 5 Terminals: A, B, C, D and E. Most likely you will be docked here and is where your private transfer will start or end.
Very few small cruise ships go to North and South Terminals, located in the World Trade center.
Sant Bertrand Terminal, 8, 9 and 10 in the map, are ferry lines to Balearic Islands and Italy.