My kids - 16 and 12 did this. The staff/trainers were great. I had purchased the 45 minute package for $118 USD (included transfer from our hotel) and they were in the water for about an hour and a half. The dolphins and manatees are in a lagoon, not a pool which was nice.
As people have mentioned, the pictures were insane. $25 for each pic to be put on a disk or $35 for a hard copy. It's a shame because the pictures were good, I just couldn't part with that much money after spending it on the dolphins. We went to snorkel/cenote/zip line and got all those pictures (over 100) on a disk for $40. I would have rather donated to the care of the animals than to the photographers.
Because the swim was extended, we missed lunch and had to hope back on the van to our resort. It didn't matter, because we were at an all inclusive. Don't forget your towels and biodegradable sunscreen.
If you own or manage Dolphin Discovery, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.