<p>Royal Caribbean International plans to build a boardwalk with a handmade carousel on the Oasis of the Seas, which will be the world's largest cruise ship when it debuts in December 2009.</p><p>But Norwegian Cruise Line thinks its F3 project will have something cooler: a real Ice Bar that serves up fur coats, gloves and hats with its drinks.</p><p>NCL officials journeyed to Las Vegas, the nightclub capital, to hold a press conference trumpeting highlights of the hot nightclub scene planned for its F3 ships.</p><p>Royal Caribbean executives Wednesday opted for New York City to hold their own press conference showcasing the boardwalk ''neighborhood'' that will accompany the open air Central Park slated for the Oasis of the Seas. That 220,000-ton ship, which will carry 5,400 passengers, will also feature the first-ever amphitheater at sea, a zip line for guests to move about onboard, as well as two-story loft suites.</p><p>''What we wanted to do was cluster certain activities to certain different interests,'' said Adam Goldstein, president and chief executive officer of Royal Caribbean.</p><p>''They're all trying to outdo each other and outdo themselves,'' said Stewart Chiron, a Miami cruise expert who attended NCL's unveiling in Las Vegas Tuesday night.</p><p>Norwegian said it will do away with a main showroom on its F3 ships, which will be 150,000-tons and carry 4,200 passengers. Instead, it will have five distinct entertainment venues. These include an ice bar, a beach club, and exclusive lounges and nightclubs .</p><p>``They're creating multipurpose facilities on board the ship,''said Chiron.</p><p>Instead of a main showroom that is used for a few hours each day, these areas will be used by guests during both the day and night.</p><p>Many of the clubs and lounges introduced by Norwegian will require guests to pay additional cover charges. Chiron said that Norwegian is attempting to make F3 an ''ultra-hip ship'' to attract younger people.</p><p>Royal Caribbean plans to start taking reservations for the Oasis of the Seas after Labor Day.</p><p>The cruise line's CEO isn't worried about the economy affecting business.</p><p>''We build these ships to be vibrant parts of these fleets for decades,'' Goldstein said. ``We feel that we're building an incredible vacation opportunity and that will draw people at all times.''</p>