What are the environmental impacts of tourism in Venice?

Tourism's main environmental impacts in Venice are boat traffic, whose wake (moto ondoso) erodes building foundations and canal banks, pollution of the lagoon, a heavy load of waste in a city where everything moves by boat, and crowding that strains fragile streets and bridges. Tourism is not what makes Venice sink: subsidence comes mostly from natural compaction of the ground and past groundwater pumping, combined with rising sea levels.

The main impacts

• Boat wake. Water taxis, delivery boats and tour boats create waves that wash out mortar and bricks at the waterline and erode the salt marshes of the lagoon. Speed limits exist, but enforcement is a constant issue.
• Large cruise ships. For years, big ships sailed past St. Mark's Square and through the Giudecca Canal, raising concerns about wake, emissions and lagoon damage. Italy banned large cruise ships from that route in 2021; they now use ports outside the historic center.
• Water pollution. Much of the historic city has no modern sewer network, and wastewater from buildings, hotels and boats ends up in the canals and lagoon.
• Waste. Millions of visitors a year produce extra trash that has to be collected by hand and carried out by boat.
• Crowding and wear. On peak days, visitors far outnumber the fewer than 50,000 residents of the historic center, which also drives residents out as homes become short-term rentals.

Is Venice sinking because of tourists?

No. Venice has sunk slowly for centuries as the soft lagoon sediments compact. Pumping groundwater for industry on the mainland made it much worse in the 20th century until it was stopped. The bigger threat today is sea level rise, which makes "acqua alta" floods more frequent. Since 2020, the MOSE mobile barriers can close the lagoon inlets during high tides.

What Venice is doing

• A day-tripper access fee on selected peak days, introduced in 2024. Overnight guests pay the city tourist tax instead and are exempt.
• Limits on tour groups in the historic center, to 25 people.
• Rules against large cruise ships in the Giudecca Canal and St. Mark's Basin.

How to visit with less impact

1. Stay overnight instead of making a rushed day trip, and visit outside the summer peak.
2. Use the vaporetto rather than private water taxis.
3. Refill a bottle at public fountains instead of buying plastic bottles.
4. Explore beyond St. Mark's and the Rialto, and eat and shop at local businesses.

FAQ

Will Venice sink in 100 years?

Not literally, but without protection, rising seas would make flooding so frequent that much of the city would be hard to live in. Long-term protection beyond MOSE is still debated.

Does Venice charge an entry fee?

Yes, for day visitors on certain peak days, booked online in advance. Check the City of Venice's official site for current dates and amounts.

Are cruise ships still allowed in Venice?

Large cruise ships can no longer sail past St. Mark's into the historic center. Smaller ships and ships using mainland ports still bring visitors.

What is the biggest problem for Venice?

The combination of rising seas and a shrinking resident population, both made harder by mass day-trip tourism.