The first day we try everyone out in the resort pool. Check equipment, teach everyone a few new tricks and make our beach selections for the following day based on our evaluations of the group. For us safety always comes first. We might move the group to an easy beach first, with lots of fishes. By the end of that swim we will have everyone excited to swim with dolphins in the deep water.
Most people only know about dolphins from above water.
The majority of dolphins at any one moment, are always underwater. We gear our education towards this end. But non-snorkel'ers can rent boards with viewing windows, so they never need to put their face into the water, if they do not want too. It has been our experience that they will want to and almost always do when the dolphins appear. This is why everyone is trained to snorkel first.