I have found the best way to get to SeaWorld without a car is the good ole Orlando City Bus System. Lynx!!! You need to take Lynx #50 The schedule can be found here http://www.golynx.com/core/file.php?path=/Solodev/clients/solodev/Enterprise%20Main/Data%20Center/Route%20Manager/_Images/0053332-link_50.pdf It departs from the TTC starting at 6:33 am and the last bus departing near SeaWorld is at 11:10 pm. There is also a major departure point at the Westside Bus Stops at DTD, but I wouldn't recommend that for an early morning departure because it is extremely difficult to get there before 10am