Torcello is a relatively quiet place. Majority of it is a nature reserve and though visited by tourists a lot, not many go further than the two large churches. There is a plenty to do - walk on the island and if you get tired, there are some nice trattorias or even a museum. Did you know that Torcello was much larger than Venice in 10th century? Its days of glory were over when the swamps around multiplied as did mosquitoes and malaria.