The Italian Government has decided that from 1 August, no more large ships will be allowed to enter the historical Venice centre.
Italian Culture Minister Dario Franceschini announced this decision which is aimed at protecting the city’s environment.
Ships which weigh 25,000 tonnes or more will only be allowed to enter the zones known as Marghera.
The decision is expected to mostly affect passenger and merchant ships.
Environmentalists and historians had long been claiming that large ships in the heart of the city were causing pollution and ruining the foundations on which the city is built.
Venice is built on 118 small islands which are separated by canals joined by 400 bridges.