Thanks to the Edelweiss Debacle of 2015, we missed most of our time in Venice. Instead of two nights, a full day with two tours with Walks of Italy, and a gondola ride, we had 11 hours in Venice. We missed one night, the whole day, and the tours. But we did our best and stayed out as late as we could and got up as early as we could.
Obviously we have to go back someday (hopefully soon!). Let us know what we missed so we can put it on the list for next time!