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Cruise Lines International Association, which represents 95% of the cruise industry, introduced mandatory requirements to be able to set sail again.

USA TODAY

SeaDream Yacht Club is heading back to Barbados after a passenger tested positive for COVID-19.

The ship, SeaDream I, was on its first Caribbean cruise since the pandemic caused sailing to cease in March. The line had already had a successful transatlantic sailing, picking up passengers from Oslo, Rotterdam, the U.K., and Madeira, Portugal.

Passengers on the current cruise had boarded the ship on Saturday. The ship had already called at St Vincent, Canouan, the Tobago Cays and Union Island, with trips ashore to empty beaches and for snorkelling in a carefully orchestrated bubble, with no contact allowed with local people.

Passengers were required to take a