Video: Celebrity Cruises Will Be the First Line to Sail With Ticketed Passengers in June (Travel + Leisure)Qantas Is Encouraging Australians to Get Vaccinated by Giving Away Free FlightsEU's COVID Travel Certificate Has Launched for Summer TravelersSouthwest, American Suspend Alcohol Sales Following Spike in Unruly Passenger ReportsExplore the Qatari Desert With Moonlit Camel Rides, Glamping, and StargazingThe 5 Most Luxurious New Hotels in Corfu10 UNESCO World Heritage Sites To See in Your