For a limited time on select Carnival Cruise sailings you may receive great rates and up to $100 FREE onboard credit on select sailings departing 8/31/15 thru 5/31/16. Note all fares displaying online qualify. Please note: this offer is fare code restricted. Onboard spending based on length of sailing. Additional restrictions may apply. Please call for more information and to book. Hurry - offer ends 11:59PM EDT on May 31st!