Hi:
We did the swimming with the sea lions last month, and it was the best experience, for all of us, DH,DD and DS; and my kids are only 5 and 6 y/o. One of the trainers helped my kids inside the pool. We had the experience with Pingo (the father), the mother, and Luna (the baby). Luna is just 9 months old and it was her first show. We got there early and they offered us the experience, I guess they didnt have enough reservations. We did the dolphin encounter in the Bahamas last year and this was much better.
Hope you have a great time at the park, is beautiful and the people that work there are friendly.
Lydia