Today I have experienced the high water in Venice! Venice is literally sinking. When the high tide comes in all the canals overflow onto the concrete and into the houses. San Marco square is definitely the main places to see the high water first, as it is the lowest part of Venice.
Reading up on Acqua Alta I found the factors as to why this happens : A very high tide (usually during a full or new moon), low atmospheric pressure and a scirocco wind blowing up the narrow, shallow Adriatic Sea, which forces water into the Venetian Lagoon.
The worst flood ever recorded was one back in the 1966.
It is very exciting to see something like this happen in a city! It’s something normal that happens couple of times in the year in Venice and it’s definitely worth to go and see and get your feet wet.