Gondolas are seen in Grand Canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in Grand Canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in Grand Canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in Grand Canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in Grand Canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in a canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

A gondola is seen in a canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in a canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in a canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

Gondolas are seen in a canal during an exceptionally low tide in the lagoon city of Venice, Italy, February 26, 2021. REUTERS/Manuel Silvestri

A gondola lift is seen as the spread of the coronavirus disease (COVID-19) continues in Kitzbuehel, Austria January 19, 2021. REUTERS/Leonhard Foeger

A skier wearing a protective face mask passes a sign in the gondola station as the spread of the coronavirus disease (COVID-19) continues in Kitzbuehel, Austria January 19, 2021. REUTERS/Leonhard Foeger

A skier wearing a protective face mask passes a sign in the gondola station as the spread of the coronavirus disease (COVID-19) continues in Kitzbuehel, Austria January 19, 2021. REUTERS/Leonhard Foeger

Skiers wearing protective face masks leave the gondola lift as the spread of the coronavirus disease (COVID-19) continues in Kitzbuehel, Austria January 19, 2021. REUTERS/Leonhard Foeger

A gondola lift is seen as the spread of the coronavirus disease (COVID-19) continues in Kitzbuehel, Austria January 19, 2021. REUTERS/Leonhard Foeger

A gondola lift is seen as the spread of the coronavirus disease (COVID-19) continues in Kitzbuehel, Austria January 19, 2021. REUTERS/Leonhard Foeger

People on a gondola watch a movie while observing social distancing from moviegoers on other gondolas amid coronavirus disease (COVID-19) at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

People on a gondola watch a movie while observing social distancing from moviegoers on other gondolas amid coronavirus disease (COVID-19) at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

People on gondolas watch a movie while observing social distancing amid coronavirus disease (COVID-19) at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

A man wearing a face mask and a face shield as a protection against the coronavirus disease (COVID-19) rows a gondola at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

People on a gondola watch a movie while observing social distancing from moviegoers on other gondolas amid coronavirus disease (COVID-19) at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

People on gondolas watch a movie while observing social distancing amid coronavirus disease (COVID-19) at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

People on gondolas watch a movie while observing social distancing amid coronavirus disease (COVID-19) at a float-in cinema, in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

People ride on a gondola before a movie begins at a float-in cinema in Venice Grand Canal Mall, Taguig City, Metro Manila, Philippines, December 18, 2020. Picture taken December 18, 2020. REUTERS/Lisa Marie David

Moored gondolas are pictured in a flooded St. Mark's Basin during high tide as the flood barriers known as Mose are not raised, in Venice, Italy, December 8, 2020. REUTERS/Manuel Silvestri

A sign is pictured in front of a gondola of the Eiger Express in the V-cableway Terminal of the Jungfrau Railways, a 470 million CHF investment connecting Grindelwald to Maennlichen and Eigergletscher with 2 lifts, during last testings before its opening on December 4, amid the coronavirus disease (COVID-19) outbreak, in the ski resort of Grindelwald, Switzerland November 23, 2020. REUTERS/Denis Balibouse

A sign is pictured in front of a gondola of the Eiger Express in the V-cableway Terminal of the Jungfrau Railways, a 470 million CHF investment connecting Grindelwald to Maennlichen and Eigergletscher with 2 lifts, during last testings before its opening on December 4, amid the coronavirus disease (COVID-19) outbreak, in the ski resort of Grindelwald, Switzerland November 23, 2020. REUTERS/Denis Balibouse

A staff stands in front of a gondola of the Eiger Express in the V-cableway EIgergletscher station of the Jungfrau Railways, a 470 million CHF investment connecting Grindelwald to Maennlichen and Eigergletscher with 2 lifts, during last testings before its opening on December 4, amid the coronavirus disease (COVID-19) outbreak, in the ski resort of Grindelwald, Switzerland November 23, 2020. REUTERS/Denis Balibouse

A staff stands in front of a gondola of the Eiger Express in the V-cableway Terminal of the Jungfrau Railways, a 470 million CHF investment connecting Grindelwald to Maennlichen and Eigergletscher with 2 lifts, during last testings before its opening on December 4, amid the coronavirus disease (COVID-19) outbreak, in the ski resort of Grindelwald, Switzerland November 23, 2020. REUTERS/Denis Balibouse

Gondolas are seen on the Rettenbach glacier, as the coronavirus disease (COVID-19) outbreak continues, near Soelden, Austria, October 17, 2020. REUTERS/Leonhard Foeger

Gondolas are seen on a foggy day on the Rettenbach glacier, as the coronavirus disease (COVID-19) outbreak continues, near Soelden, Austria, October 17, 2020. REUTERS/Leonhard Foeger

Gondolas are seen on a foggy day on the Rettenbach glacier, as the coronavirus disease (COVID-19) outbreak continues, near Soelden, Austria, October 17, 2020. REUTERS/Leonhard Foeger

Tourists take a gondola ride near St. Mark's Square following the outbreak of the coronavirus disease (COVID-19) in Venice, Italy, September 11, 2020. REUTERS/Guglielmo Mangiapane

Tourists take a gondola ride following the outbreak of the coronavirus disease (COVID-19) in Venice, Italy, September 11, 2020. REUTERS/Guglielmo Mangiapane

A gondolier sleeps in his gondola as he waits for clients near St. Mark's Square following the outbreak of the coronavirus disease (COVID-19) in Venice, Italy, September 11, 2020. REUTERS/Guglielmo Mangiapane

Tourists wear protective face masks as they take a gondola ride near Rialto bridge following the outbreak of the coronavirus disease (COVID-19) in Venice, Italy, September 9, 2020. REUTERS/Guglielmo Mangiapane

A combination picture shows clear water in Venice Saint Mark's Basin in Venice, Italy, April 16, 2020 (top) and tourists walking past a Gondola station near St. Mark's Square as Venice gets ready to host the world's first film festival since the coronavirus outbreak, August 29, 2020 (bottom). REUTERS/Manuel Silvestri

Tourists walk past a Gondola station near St. Mark's Square as Venice gets ready to host the world's first film festival since the coronavirus outbreak in Venice, Italy, August 29, 2020. Picture taken August 29, 2020. REUTERS/Manuel Silvestri

Gondolas of the Panoramic cable car to Italy are pictured at the Aiguille du Midi near the Mont-Blanc in Chamonix, France, July 20, 2020. REUTERS/Denis Balibouse

Moored gondolas are seen in the lagoon at the Piazzetta next to St. Mark's Square, amid the coronavirus disease (COVID-19) outbreak, in Venice, Italy June 19, 2020. REUTERS/Fabrizio Bensch

A gondola is pictured during evening high water at Grand Canal in front of Rialto bridge, amid the coronavirus disease (COVID-19) outbreak, in Venice, Italy June 17, 2020. REUTERS/Fabrizio Bensch

A gondolier sits next to a gondola a day before Italy and neighbouring EU countries open up borders for the first time since the coronavirus disease (COVID-19) outbreak hit the country, in Venice, Italy June 14, 2020. REUTERS/Manuel Silvestri

Gondolas with tourists on board pass under the Bridge of Sighs a day before Italy and neighbouring EU countries open up borders for the first time since the coronavirus disease (COVID-19) outbreak hit the country, in Venice, Italy June 14, 2020. REUTERS/Manuel Silvestri

Tourists are seen in a gondola a day before Italy and neighbouring EU countries open up borders for the first time since the coronavirus disease (COVID-19) outbreak hit the country, in Venice, Italy June 14, 2020. REUTERS/Manuel Silvestri

Children look a a gondola with passengers as gondoliers officially resume work for the first time since Italy's strict coronavirus disease (COVID-19) lockdown, in Venice, Italy, May 30, 2020. REUTERS/Manuel Silvestri

Passengers sit in a gondola as gondoliers officially resume work for the first time since Italy's strict coronavirus disease (COVID-19) lockdown, in Venice, Italy, May 30, 2020. REUTERS/Manuel Silvestri

Passengers sit in a gondola as gondoliers officially resume work for the first time since Italy's strict coronavirus disease (COVID-19) lockdown, in Venice, Italy, May 30, 2020. REUTERS/Manuel Silvestri

Passengers sit in a gondola as gondoliers officially resume work for the first time since Italy's strict coronavirus disease (COVID-19) lockdown, in Venice, Italy, May 30, 2020. REUTERS/Manuel Silvestri

Passengers sit in gondolas as gondoliers officially resume work for the first time since Italy's strict coronavirus disease (COVID-19) lockdown, in Venice, Italy, May 30, 2020. REUTERS/Manuel Silvestri

Clients are seen in a gondola as gondoliers officially resume work for the first time following the country's strict coronavirus disease (COVID-19) lockdown, in Venice, Italy, May 30, 2020. REUTERS/Manuel Silvestri

A woman boards a gondola as gondoliers resume their service on the Grand Canal while Italy eases some more of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Venice, Italy, May 18, 2020. REUTERS/Manuel Silvestri

A woman wearing a face mask sits in a gondola as gondoliers resume their service on the Grand Canal while Italy eases some more of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Venice, Italy, May 18, 2020. REUTERS/Manuel Silvestri

Moored gondolas on an empty Grand Canal are seen in Venice on the second day of an unprecedented lockdown across of all Italy imposed to slow the outbreak of coronavirus, in Venice, Italy, March 11, 2020. REUTERS/Manuel Silvestri

An empty gondola departure point in a virtually deserted St. Mark's Square after a decree orders for the whole of Italy to be on lockdown in an unprecedented clampdown aimed at beating the coronavirus, in Venice, Italy, March 10, 2020. REUTERS/Manuel Silvestri

Turists wear protective face masks in a gondola, because of an outbreak of coronavirus, in Venice, Italy February 23, 2020. REUTERS/Manuel Silvestri

Tourists wearing protective masks travel on a gondola in Venice, Italy, February 7, 2020. Floods in November and fears of the spread of coronavirus have caused a 10 percent decline in hotel bookings ahead of the Venice carnival, the Venice Hoteliers Association said. REUTERS/Manuel Silvestri

Empty gondolas are seen on a canal in Venice, Italy, February 6, 2020. Floods in November and fears of the spread of coronavirus have caused a 10 percent decline in hotel bookings ahead of the Venice carnival, the Venice Hoteliers Association said. Picture taken February 6, 2020. REUTERS/Manuel Silvestri

Tourists wearing protective masks are seen inside a gondola, after two coronavirus cases have been confirmed in Italy, in Venice, Italy, January 31, 2020. REUTERS/Manuel Silvestri

Tourists wearing protective masks are seen inside a gondola, after two coronavirus cases have been confirmed in Italy, in Venice, Italy, January 31, 2020. REUTERS/Manuel Silvestri

Two gondolas are seen over the slope near Kitzbuehel, Austria January 21, 2020. REUTERS/Leonhard Foeger