The liner Grand Princess arrived in Dublin Port this morning to mark the beginning of the cruise season.
The Dublin Port Company says it has secured 90 cruise ship visits this year, which will bring over 100,000 passengers to the city.
It is calculated to be worth up to €50m for the local economy.
The port company recently announced plans for a new terminal adjacent to the East Link bridge, which will allow two cruisers to dock at the same time and bring passengers closer to the city centre.
It hopes to have it built by 2015 as part of its master plan, which will involve investment of €110m over the next five years.
The new terminal is part of Cruise Dublin, a joint initiative with Dublin City Council and Dublin Chamber of Commerce to develop the cruise tourism trade.
The Grand Princess is the length of three football pitches and 17 decks high.
It can carry 4,000 passengers and crew and has a range of facilities, including an outdoor cinema, shopping mall, swimming pools and a nine-hole putting course.