My girlfriend (25f) really wants to go to a SeaWorld equivalent and I (23m) don't know how to tell her I don't want to support them for the way they treat animals

My girlfriend and I are going on vacation to South Florida and she is very excited to go to an entertainment park very similar to SeaWorld and I'm struggling to find out how to tell her that I don't want to go because I think it's wrong.

We both eat meat and I even hunt, but I truly think the captivation and exploitation of intelligent life for entertainment purposes is incredibly unethical. I know that she will be crushed by my strong feelings against it because she's been talking for WEEKS about how she wants to swim with the animals.

Am I off base on how unethical these facilities are? Does anybody have any tips in helping me convince my girlfriend not going would be the right thing to do?

UPDATE: I left out the fact that I have brought the subject up with her a few times, she failed to understand my points of view because she went many times growing up and found it to be such a positive thing. I am also from a different part of the state and we are taking every precaution necessary as we drive down to visit family for a small post holiday celebration with 4 people.

Anyways, I casually put on Blackfish as many of you suggested and it really opened her eyes to how unethical these places are and we both enjoyed it a lot (I had never seen it before).

Thanks for the advice!