We were there in mid-July 2003. Got to the buses around 10:30 or 11:00. Blizzard Beach was already full. We had not planned on going to the parks that day, so we spent a couple of hours in the hotel pool. The hotel checked for us around 1:30 and it had opened back up, so we went then. Arrive around 2:00 and had plenty of time to do everything. Also, no lines getting in and the park was clearing out. Did not have to wait in long lines for slides, etc. It worked out just fine.