According to the website, it is affiliated with Chankanaab Park. It states the parks entrance fee is included in your package. I'm not sure what your package offers that would be different than just going to the park, but I can tell you that Chankanaab Park is very nice. We did our swim with the dolphins there and it was awesome, worth every cent. The snorkeling is not as good as it was before the hurricane, but above ground has been fixed up to pre-hurricane conditions. Hope this helps some.
