Celestyal is boosting is Mediterranean cruise programme Get the Travel Insider newsletter for tips, deals, and inspiration from our global travel editor Get inspired with our free Travel Insider newsletter Get inspired with our free Travel Insider newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Celestyal has become the latest cruise line to cancel its Arabian Gulf sailings for winter 2026/27 amid the Iran