Royal Caribbean International opened Vision of the Seas' winter 2012-13 Caribbean season for sale. Travellers can choose among 19 Caribbean and Panama Canal cruises, ranging from 10 to 15 nights and sailing roundtrip from Port Everglades in Fort Lauderdale, Fla. According to officials, Vision of the Seas' new seasonal itineraries are destination rich and visit smaller Caribbean islands less travelled by the cruise line's larger ships. Variations of a 10-night Eastern Caribbean itinerary features calls at Tortola, St. Maarten, Dominica, Antigua, St. Kitts, St. Croix and Martinique. Cruisers...