Besides using the Mears shuttle or a towncar service, or a taxi...you can get a Lynx bus (Orlando's public transit co.) from TTC to SeaWorld. If you go to the Lynx website it will give you a better idea as to the time frame. You hop on the bus, pay $1.25, exact change please, per person each way. Tell the driver you want to go to SeaWorld. They should then drop you at SW parking lot. Just walk across lot to the entrance. When you make the return trip...just cross lot, then the street and the bus stop is right there. They have little paw prints on the signage. And then again...$1.25 pp. It takes about 20 minutes if I remember correctly. It was a pretty easy alternative to the more expensive options.