I'm actually dreading all the walking with DD. DS is in pretty good shape. He plays soccer 3 times a week and loves sports. He has some endurance built up. DD hates all the walking and her legs get tired pretty quickly. Last time we were at Disney, DS was 2 and DD was 4. Both of them pretty much stayed in the stroller most of the time. DD walked a bit, but we had a stroller for each of them, so there was always the option to sit. DS stayed in the stroller except for pictures and rides. He even took naps in the stroller. We'd just stay in the park and take turns with attractions or go get something to eat while he slept. He'd just conk out and we could keep moving. The strollers were kind of a Godsend. Now they are too old for strollers, so I have to wonder how it will go.