For Margaret’s birthday this year, we spent the (hot, sunny) day at Discovery Cove, including some underwater time with SeaVenture, which is sort of “scuba with no skill”.
They let us borrow a good quality underwater camera (in return for paying for the photo CD of course) and we got some nice pictures …

The day was busy, very entertaining, and quite exhausting! Discovery Cove is an expensive trip, but the ($150 each) admission did include all food & drinks, including a reasonable choice and breakfast and lunch items. SeaVenture costs more, but the “lazy river” ride, pools, sand “beaches” and snorkeling with fish and rays was all included in the basic price. We did not choose to pay to go in with the Dolphins (having done it more one-on-one in Las Vegas), but we sat nearby and watched them play, anyway!