I cannot tell you how much you will love this place.
I dont personally enjoy water parks and always try to avoid them, but we went to Discovery Cove this year as part of our wedding/hooneymoon holiday, and it was just brilliant.
I remember gulping when handing over my credit card details, but I am so glad I did it.
It is not crowded because they limit the intake to about a 1000 people, so you can have peace & quiet if you are sunbathing. It is beautifully set out with little shacks where you can get free drinks & food all day. I think we had breakfast/brunch & dinner!!! The food isnt just your average burger & fries, it was superb. Lots of bbq and lobster etc.
We swam with the dolphins at 1.30. My youngest Daughter couldn't swim properly at the time, so she had a life vest on (which kept her afloat the whole time she was swimming), and a team member stayed with her while she held onto the dolphin.
It was a magical experience you will never forget.
We did snorkelling, which I would have loved to have done properly, but I panic too much underwater, though my Husband & girls loved it.
Trust me it will be money well spent.