According to the UG, crowds levels are suppose to be fairly low (4 and 5's leading up to the weekend and after the weekend). I hope they are correct. However, I expect it will be crowded over the weekend, and plan to arrive early to the parks to get in as much as we can before it gets really crowded. Also, have seen a few posts here that there's not much left as far as on-site accomodations, which = crowds.