One place you don't want to miss is this 11km long part of the Venetian seashore which is surrounded by many bars and restaurants offering never-ending entertainment. The annual Venice Film Festival takes place here as well. It's a rather touristy place but definitely worth visiting.
Wikipedia https://en.wikipedia.org/wiki/Venice_Lido
Official website http://www.lidodivenezia.it/en/
More information http://wikitravel.org/en/Venice/Lido
Address 25 Lungomare Guglielmo Marconi, Lido di Venezia 30126, Italy
Coordinates 45°24'34.321" N 12°22'21.012" E