Cruise ship MSC Grandiosa berths in the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

Cruise ship MSC Grandiosa lowers the stairs for tourists to disembark in the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

Aerial photo taken on on Aug. 21, 2020 shows cruise ship MSC Grandiosa sailing into the Port of Valletta, Malta. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

A man looks at cruise ship MSC Grandiosa in the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

Cruise ship MSC Grandiosa sails into the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

Cruise ship MSC Grandiosa sails into the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

Cruise ship MSC Grandiosa sails into the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)

Cruise ship MSC Grandiosa sails into the Port of Valletta, Malta, on Aug. 21, 2020. The MSC Grandiosa, a Meraviglia Plus-class cruise ship owned and operated by MSC Cruises, sailed into the Port of Valletta on Friday morning, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo by Jonathan Borg/Xinhua)