I haven't booked flights yet bit planning to come in a day early. How about you? And, how old are your kids?
We are coming in a day early, and have booked two post nights in Venice. My brother-in-law is going to be in Italy, and he is going to meet up with us in Venice. Glad to hear you're doing a pre-stay, your kids are older, but mine were beat our first day in London when we did Knights and Lights (and so was I!). Plus, I'm a worrier, and wanted to be there ahead of time, just in case.
We have a son who just turned 16 (finishing up 10th grade) and our daughter is 12, but will turn 13 while we're in Venice. She's finishing up 7th grade.
Where are you flying from? We're flying out of Buffalo, to Philly, and then non stop flights to and from Philly. Flights would be easier if we were closer to a city, but I'm thrilled to just have the one stop in Philly.
So glad to "meet" someone who will be on our trip. There are lots of tips on the board for ideas of what to do on pre- and post stays (and what to do on our "free" time).