In an attempt to ease the pressure, residents and locals now use separate entrances to the canal city's water buses, the Vaporetti.
The initiative, which started in June, allows residents to board faster by avoiding tourists.
Earlier this week, a New Zealand man injured himself and the driver of a water taxi when he drunkenly jumped off the city's famed Rialto Bridge.
Tourists are often tempted to jump into Venice's canals during the torrid heat of the summer, despite a strict ban on swimming, not to mention the pungent smell of sewage that frequently emanates from the canals.
Four British tourists were photographed stripping down to their underpants and leaping into the canal from the Rialto Bridge in 2013.
But the Mayor of the World Heritage city has now had enough of this and other types of bad behaviour. "I insist on (introducing) special powers to the city to uphold public order. Pickpockets, vandals, drunks! A night in the cells," Luigi Brugnaro, the Mayor, wrote on his Twitter account.
- AAP