Norwegian Cruise Line Holdings enjoys getting away from it all. Through its subsidiaries, the holding company maintains a fleet of 11 vessels with a total of 26,310 berths. The ships sail from 17 ports, 10 of which are in North America. The company offers tours to such locales as Alaska, the Bahamas, Hawaii, and South America. NCL markets a "freestyle cruising" concept, in which a resort-style atmosphere is provided. Passengers are encouraged to dress casually and can eat whatever and whenever they like. Genting Hong Kong owns 50% of Norwegian Cruise Line Holdings, while Apollo Funds and TPG Viking Funds own the remainder. In mid-2011 the company filed for an IPO.