The vessel departed on a nine-day cruise to the Norwegian Fjords, calling at Stavanger, Skjolden, Alesund, Molde and Bergen.
Pride is scheduled for eight more departures from Dover this summer, offering a range of nine- and 12-day itineraries.
"We are immensely proud to be welcoming Carnival Cruise Line back to Dover and honored to be part of Carnival’s 50th birthday celebration with the kickoff of nine fantastic turnaround calls starting today," said Sonia Limbrick, head of cruise for the port.
To mark the occasion, the port hosted performances by UK brass quintet Premium Brass and pianist and singer Nick Bosworth. Tugs gave Carnival Pride a water cannon salute.
