Toast the setting of the sun and enjoy each others company as the stars fill the sky. This could well be the most memorable time you spend on the Valley Isle. Bring your own gear or rent some. There's lots of places to snorkel on this island and The Frog knows where they are. The Frog can help.
Snorkeling is really easier than most people think.
But to get off on the right foot, or flipper, it's best to have some good instruction. Of course with any sport or hobby you need to know how to choose the equipment.