We did the dolphin swim on Wednesday. Like a PP poster suggested, get there early. We arrived at 7:30 (when they start admitting people) and got an 8:40 swim time. It was just the right amount of time - we had breakfast, got our gear, lotioned up and were ready to go at 8:30. Because we were the first swim time, we got the short wetsuits for the dolphin swim, as I had read that the water would be on the chillier side. I was glad we did, the water for the dolphins is 72 degrees, so it was a little chilly to the body in the morning. I typically never get hot, so I was glad to have that extra layer of warmth. My husband is the hot-blooded one and he seemed comfortable. (Not hot, not cold). We also kept the wetsuits on for our first venture into the grand reef (after our swim), as that water is colder than the other areas too. After that we switched out the wetsuits for vests and it was no problem. About the first time I used the restroom I decided to make the switch - pulling on that wetsuit on a wet body is no fun!!
You will want the photos from the dolphin swim - it is awesome!!! You get to touch them as they swim by you, learn a few of their tricks, kiss it, pose with it and then swim with it. I was expecting the swim portion to be bumpy but it was sooooo not. My hair never even got wet nor did my sunglasses. We were lucky enough that all four dolphins in our "lagoon" got to swim together and show us some jumping tricks - don't know if that happens for everyone. We had a dolphin named Capricorn, the oldest male they have.