The City of Venice has a project they call “Detourism” supposedly promoting sustainable tourism in Venice.
They describe it this way:
Travel Venice like a local
DETOURISM is a new project of the City of Venice for curious travellers who enjoy wander off the beaten path looking for the Venice most unusual and secret places and discovering its original characters.
Because Venice is the perfect place to get lost.
Travelling in a different way.
Experiencing Venice like a Venetian.
Discovering another Venice.
So ditch the itinerary and become a detourist, find out what travel guides never tell, and discover an unexpected Venice.
The idea of DETOURISM is to invite guests to the lagoon to put themselves in the shoes of the local people; not to be a tourist but to travel the city slowly and with love, to get lost in search of a more authentic and lesser-known Venice.
And then they ban kayaks, canoes and dragon boats, harming a whole series of very off-the-beaten tracks offers of sustainable tourism.