The Feast of Il Redentore or Feast of the Redeemer, commemorates the end of the 1576 plague. Half of Venice, picnics aboard boats and gondolas to watch the spectacular fireworks.
A bridge of boats spans the Giudecca Canal, connecting Dorsoduro to Palladio’s Church of the Redentore on the island of Giudecca. The Redentore festival takes place on the third Saturday and Sunday in July. To read more about this feast and its history, see http://venicexplorer.net/tradizione/redentore/index.php?hlangs=en
For more pictures: http://venicexplorer.net/artit/wall/wall.php?hlangs=en&cat=redentore