Venice Lagoon, and Sottomarina in particular, are great wind related's sports. When the Bora wind blow from Trieste it get really strong here too and lots of people pack their car with their spor gear and drive here to enjoy it.
During summer they also have windsurf classes, jet ski and canoa.
Almost all beach rentals have a regular size beach volley field and they organize tournaments.
Venice Beach Resort, close to Chioggia
Sottomarina have always been the closest beach to Padova, so since I was a kid I always visited. It soak into Venice lagoon but it is about 60 kilometer from Venice as it is in the other side of the lagoon.
I can't tell I really like it during summer, the beach is packed of beach rental place, the umbrella and the chair sit one next to the other and to me, it look much like a sun tan bedlam... I dont like crowd of people so it just does not feel right. BUT during winter or early spring I love to go and walk on the beach or on the long jetty with the fishhouses.
If the strong wind is blowing there are always lots of windsurfers and kite surfers as this is a great spot for them, beside when it is more calmer there are people walking on the shore and often horseback riders.
The closest you get to the jetty the wilder the beach become, even if wild unfortunally does not apply to this place anymore, the so called "wild" part is maybe 50 meter long.