What an experience!
By A Yahoo! Contributor, 2/21/08
Last summer my husband and I had a chance to swim with the dolphins at MarineLand. While this isn't Sea World (where they force the animals to perform on schedule). This park is for education and information. The price for the amount of time we were able to spend with the dolphins was amazing. For less than $300, we spent about 45 minutes in the water with the dolphins, got a towel and several pictures free (I don't remember now the exact number) and got to paint a picture with a dolphin (that we also got to keep). I've had friends do this at Sea World and didn't get anywhere near the amount of time and things we did.
If you're going looking for a Sea World type place, you'll be disappointed. If you're going to watch the dolphins swim and have fun on their own--you'll have a great time!