The whole month of March pretty spring break season along with spring training baseball. To the original poster if you and your family are really wanting to go Disney and can't find a spot for the rv there is always the other resorts on disney property and I have heard that they allow you to park your rv in the parking lot. It's a idea if nothing else can be found. You could check with silver springs state park as if now they are not taking reservations for sites they are letting people stay as walk up only as they are doing work on the campground