There is a FREE shuttle from the on site Universal hotels to Sea World. I think the time schedule changes. Just check with the concierge desk and they'll tell you. I know ours was early enough so we were at Sea World before it opened.
just used it. It goes from all 3 onsite hotels. It left the Hrh around 9:15 and another at 10:30 and returns were at 5 and 7:15 or so. There are more times in the summer. Free of charge and it takes about 20 minutes to get there.
Thanks so much for the info. I read that there was a free shuttle but couldn't find anymore info. Do you know what Seaworld's hours were when you went?