Pullmantur Cruises is the first and the biggest cruise line, based in Spain.  Pullmantur began cruise operations in 1990 when chartered one cruise vessel After the collapse of Premier Cruises in 2000, Pullmantur acquired their ship Big Red Boat 1 and and started an own cruise line - Pullmantur Cruises. It currently operates five cruise ships - MS Empress (formerly  Royal Caribbean Empress Of  The Seas), MS Ocean Dream (formerly Pacific Star for P&O Cruises Australia), MS Zenith (acquired from another Royal Caribbean brand - Celebrity Cruises). MS Sovereign (formerly Sovereign Of The Seas for Royal Caribbean) and MV Pacific Dream (formerly Island Cruises' Island Star). The company mainly markets to Spanish - speaking passengers, although cruises aboard Pullmantur ships are sold by travel operators worldwide. Through its parent company the based in Madrid travel agency Pullmantur, the cruise line was purchased by Royal Caribbean in 2006. Following the acquisition by Royal Caribbean, several transfers were performed between Pullmantur Cruises fleet  and the other Royal Caribbean brands. More changes and ship transfers followed in 2008 and 2009.