we are thinking about making a trip to dl and dca june 10 thru 23!! are we crazy? how crowded will the parks be at about this time? are calif. schools out by then? i know they don't let out till june, but i don't know when in june? the last time we went to dl in the summer months, it was on the week of july 4th. should we expect the crowds to be about the same or less?