I don't know about up to date, but I took my wife there a year or so ago.
She had a great time.  The event starts with an orientation class,
instructions on how to, and how not to, interact with the Dolphins.  Those
that will participate have to attend.  I paid to attend even though I had no
plans to swim with the Dolphins.  I should have saved my money.  The
orientation contained nothing particularly useful outside of the planned
encounter.

The swim with the Dolphins was pretty cool.  It included much of what you
would see in a regular Dolphin show, Dolphins pushing you around by your
feet, waving, petting, splashing, pretty much standard stuff . . . if you're
a Dolphin trainer.  It was pretty exciting stuff for those in the water.
The encounter is a bit pricey, but so are a lot of things that are somewhat
unique.  The cost for my wife was shared by some of her friends who knew she
wanted to do the encounter.  It was a birthday present.  She was pleased and
they and I were pleased that she was pleased.

Lee