We were taking the Adventure Express tour and had to be at SeaWorld at a specific time, so the shuttles from HRH (only a few each day) didn't work for us. We just took a cab--don't remember how much, but not too horrible. And it was easy to snag a cab back--they wait at a specific area outside the gates of SeaWorld. It was nice to come and go on our own schedule. I love not having to cope with a car--makes it seem even more like a vacation for a mom who spends too much time driving at home!