Venice tours: alternative routes around the lagoon

After our visit to Venice with Legoland Tours, here are some real tours that provide something different to the classic Murano island visit.
The ONLUS RiViviNatura cooperative has boat tours every Saturday around the northern lagoon.
Other boat tours are also available, while Turismo Venezia has made house boat stays possible.

There is also an English guide to the islands available.
Other visits on solid ground include the Oasi di Ca’ Roman, while the WWF manages the Oasi di Valle Averto with tours around the various habitats of the lagoon.
Amicianimali has other information on Averto.