Great
Great communication, clear instructions, engaging and informative explanations from the guides. Although travel time is considerable, some of it (approach through the lagoon, water bus transfers) itself forms part of the experience. Included lunch was superb, great value. Areas to improve: greater clarity in advance about the add-ons, their cost and the need for cash; warnings that if you wish to visit St Marks Basilica you need to book in advance - very sad not to be able to see the interior.