Royal Caribbean offers several short sailing itineraries from Singapore on its Mariner of the Seas ship, including 3-night and 4-night cruises visiting destinations like Port Klang, Phuket, and Langkawi between October 2016 and December 2016, starting at prices from $389 per person. Cruisebay is an Indian cruise consultant company that can assist travelers in planning their Royal Caribbean cruises from Singapore.