Our kids are also obsessed with subway systems, even with the crowds! We've been taking them since they were tiny, so for them it is second nature but it seems each time we go it is a new adventure for them. I think the more crowded the better in their little minds because they get to see so many different people.

We did a recent post about this on our site...with suggestions for how parents can make it a smooth ride.

www.parentzing.net

Happy public transit-ing!