TOP 10 DIVE SPOTS IN PUERTO RICO.- CAYO RATON (Culebra) Arguably the fishiest dive in Puerto Rico and one of the fishiest in the entire Caribbean, this semicircular reef, starts flat and then plunges down to 60 feet. Swarms of little to medium-size life here abound, from queen angelfish and butterflyfish to parrotfish and horse-eye jacks. Check the sand for camouflaged peacock flounders. And did we mention visibility can sometimes top 100 feet here? RECOMMENDED AS AN INTERMEDIATE DIVE.