Duaiv on Celebrity Eclipse with John Block Duaiv on Celebrity Eclipse with John Block duaiv2019-11-25T14:22:45-05:00 Duaiv on Celebrity Eclipse with John Block. Buenos Aires to Ushuaia, Argentina. February 2nd to 6th, 2020. Duaiv on Celebrity Eclipse with John Blockduaiv2019-11-25T14:22:45-05:00