Anonymous wrote:OP again - I understand the hesitancy about bringing young kids to Europe, but sorry they're going lol. We had a great trip in Portugal. Everyone got to do what they wanted to do. Was it a much slower pace than if I had gone by myself? Yes, but my husband is also a slow traveler so he actually liked the slower pace better. We went all over in Portugal - Lisbon, Porto, Douro Valley, Sintra, Cascais, etc. etc. My 5 YO walked the entire day in Sintra and was fine. She loved the castles. I am not worried. My parents will also be going with us and that helped with the kids. I plan a mix of kid/adult activities, and we take breaks to rest/go to the playground etc.
That's why I allocated so much time to Rome, because we'll be slow, and that's fine by me. The 5 yo loved Portugal, still talks about it. Will she remember it in 20 years? Who knows, but we'll always have the pictures, and we (the parents) will remember.
So back to the original question - I had originally considered flying into Venice and out of Rome, but didn't see any direct flights to Venice and wasn't sure how kid-friendly it would be.
I'd take the train to Venice and stay at the JW Marriott. It has its own island so if you need to get away from the hustle it's very easy to do, amazing breakfast, pool, etc. You can get a townhouse-style suite with a little yard to let them out to play as well. Take the boat shuttle in for a few hours until the kids are exhausted and then back to the island. It would be amazing!