A few minutes ago I was talking with my friend, Beth. She's married with twin toddlers. Out of the blue (we had been talking about my birthday) I told her that my friend Sarah, her husband and their toddler had just taken a vacation in Montreal. Instead of flying, they took the train. The ride was 12 hours, but it was comfortable and roomy with lots to entertain their sun. It was also 1/5 as expensive as flying would have been. Interesting, right? People forget about the train as a travel option, and I thought "This is something Beth should know." I told her "I don't have kids or anything, but I think this might be a nice idea for you, you know just a tip," to which she replied "Tips for you!"
So, tip for you: consider the train.