You can save yourself some time in line at embarkation by completing the pre-cruise registration online. Here are the links for the online registration pages of cruise lines who offer this service:

• Carnival
  
• Celebrity
• Costa
  
• Disney
  
• Holland America
• MSC Cruises
  
• Norwegian
  
• Princess
  
• Radisson
  
• Royal Caribbean
  
• Seabourn
• Windstar