After refusing for years to even consider allowing advertising on the water buses that plough up and down the Grand Canal, Venice city council has finally decided to allow a timid experiment.
For eight months, and only on the Grand Canal, city hall will let selected advertisers put carefully monitored publicity on the sides of five of the 'vaporetti' that do the busy run between the station and St Mark's Square.
The money raised with the unprecedented venture will be used to improve the transport system in a city which runs 150 boats to move locals and tourists around between the Venetian islands.
The council has not said how much it will charge the companies that win the chance to advertise on a route travelled by millions of tourists every year.
In order to avoid unsightly or vulgar advertisements that could jar with the spectacular backdrop, a special council panel will examine all publicity before it is put on the side of a vaporetto.
Earlier this month, the council also decided to allow publicity on scaffolding covering the front of certain historic buildings on the Grand Canal during restoration work.
Approved in the interests of raising money for preserving the city, this was a temporary exception to a longstanding rule aimed at ensuring the city's main waterway retains its traditional appearance.