Can we still search? I have not tried to since the system changed. I can tell you that the week before and the week after Easter is always the most crowded as some school disticts change Spring Break to be around Easter. Ours (I am in Naperville) is always the last week of March. Sometimes, like in 05, it does coinside with Easter. I think the further you get away from Easter the better. We went last March and it was a couple of weeks before Easter. Crowds were moderate, weather was great, it was a fantastic trip!