Hey Gambitt,
if you go snorkling off the beach at PCV, go over to the dive shop, along the ledge to the point, then take a diagonal track out from the point (back towards the PCV and PP), about 50-75 feet out there should be a bunch of coral heads there with some amazing marine life, including a small (about 3 foot) black speckled Morray Eel hiding out there. There were also a bunch of groupers, parrotfish and at least 6 varieties of Angel/butterfly fish. But, watch out for the Sgt Majors, they'll be nippin at you all the way.
Just watch out for the dive boat coming back in. :D