Depending on your budget, I would seriously consider upgrading to the hopper pass. Especially if you are staying on site. Just to hit one park in the am, take a rest and swim in the middle of the day and than hit a different park at night. For example, we only ever spend a half day in Animal Kingdom. Than we hit the hotel, swim, maybe take a nap and go to Magic Kingdom at night, see Spectromagic or Wishes. There's always a reason to go back to the Magic Kingdom. The first time we went, I debated the same thing about the hopper pass. It seemed alot more for us at first, but it was very much worth it. Either way, your in Disney and it will be a great time no matter what. Enjoy!