I'm looking into booking Discovery Cove for October. However I am extremely near sighted. For snorkeling I would be going to the local dive shop and getting a prescription mask. I made the mistake on not having one when I did the Epcot aqua tour a few years ago, and the experience wasn't full without being able to see clearly. Could I wear a pair of prescription goggles for the Dolphin swim? I would hate to shell out the extra $$ and not be able to actually see what was going on? I'm assuming I would be fine wearing regular prescription sunglasses on the lazy river.