Celebrity Cruises in 2010 will base all three Solstice-class ships in Europe -- the 2,850-guest Celebrity Solstice, which set sail for the first time in November; the Celebrity Equinox, launching later this year; and the Celebrity Eclipse, setting sail in 2010 as Celebrity’s first primarily U.K.-sourced vessel.

Due to the overwhelming response to the introduction of its recent “Celebration Savings” and shipboard credit promotions for Europe, Crystal Cruises is expanding the offers to its Amazon and South America itineraries later this year.

Carnival Cruise Lines for the first time will operate seven-day Alaska cruises roundtrip from Seattle beginning in May 2010. In total, 17 week-long Alaska cruises will operate from the Port of Seattle from May 11 to Aug. 31, 2010, departing Tuesdays aboard the 2,124-passenger Carnival Spirit.

MSC Cruises has extended the deadline for savings on spring Caribbean cruises, with rates beginning at $60 per person, per night, and kids 17 years old or younger sailing free on the MSC Lirica. These cruise-only, double-occupancy rates must be booked by March 31.

The Massachusetts Port Authority (Massport) announced that the Port of Boston set a record with the most scheduled cruise ships ever to call at Cruiseport Boston’s Black Falcon Cruise Terminal. In 2008, there were 113 ship calls, an increase of 12 percent over the prior year. Scheduled passenger counts were up by 15 percent and set a new record of 270,000.

Azamara Cruises will send its fleet to Europe for the third consecutive summer when the 694-guest Azamara Journey and Azamara Quest sail in the region in 2010.