Anyway . . . one of Harold's great talents is being able to fall asleep anywhere when it's time for a nap. In the photos below, the airport was relatively quiet and empty but he's also slept in the middle of crowds with announcements blaring next to him over the loud speaker. Our routine is to tell Harold it's nap time, give him his whale, lay him down where there's room, then pound on his back till he's asleep. Pounding sounds harsh, but it relaxes him and he even requests it on occasion.
People say it's hard traveling with kids. Fortunately, it's not the case with Harold. He actually (for the most part) makes it more fun.