If I could turn back time after knowing what I know now, I would refuse to go (If you have not seen Blackfish, you need to). I regret going and I regret enjoying the dolphins and orcas perform. Now I'm not just against SeaWorld, I'm against all marine parks that keep dolphins and orcas captive. They are used purely for entertainment. There is no educational value to the animals, because if there was, they wouldn't even be in captivity.
Now I'm not saying all animals should be free and zoos are evil, every animal is different, some are fine in captivity. Orcas and dolphins aren't. They are an animal that needs an ocean to fulfill their needs, not a tiny chlorinated pool.
Dr. Naomi Rose recently did a Ted Talk about orcas that is so heartbreaking. Did you know orca pods have their own language/cultures? That they are very family oriented and never leave their pods? That if left in the wild, Orcas can live up to 50 years old, even 100? Yet in captivity they hardly make it to 30.
You can watch her presentation here:
It's up to us to be their voice, because unfortunately, they can't speak our language. If they could, I'm sure they would have all been freed by now.