Good 2/3rds of a day out. Without a fast pass thou...

Good 2/3rds of a day out. Without a fast pass though 90% of your day would be spent waiting in line, so really important to pick your rides early, or arrive super early of you want to do rides like Expedition Everest without a fast pass. Also be prepared for crowds, very little free space once everyone is in the park. Avatar rides are extremely popular = long wait times.