Date entered service: July 2003

Gross registered tonnage: 68,870

Passenger capacity: 1,070

Number of crew: 655

Other features: Known quite simply as the very best cruise ship in the world. Crystal Serenity is consistently awarded the highest accolades by the readers of Conde Nast Traveler, among others.

Date entered service: May 1995

Gross registered tonnage: 51,000

Passenger capacity: 922

Number of crew: 545

Other features: With her sleek silouette and shimmering elegance, the legendary Crystal Symphony finds a natural home in the world's most glamorous harbours and idyllic ports of call.