I can't find any information on their website but since the Renaissance is the official hotel for SeaWorld I'm sure they run multiple shuttles daily to the parks. I did find this on their site but it doesn't go into detail. As an Official Hotel of SeaWorld, guests of the Renaissance Orlando at SeaWorld, receive exclusive benefits at SeaWorld and Aquatica. I'd give them a call to see what the benefits are and the shuttle schedule 407-351-5555