St John’s is a reef system, not too distant from Rocky Island and Zabargad.
Its underwater scenery comprises many corridors and grottoes, like aquatic caves, during the day illuminated by penetrating sun rays. The visibility is great. St John’s is famous for its diversity of corals, such as black corals, serpentine corals, cabbage corals, staghorn corals and fire corals. Those corals are the perfect décor for blackspotted grunts, blue spotted rays, batfish, parrotfish, chromis, butterflyfish, squirrelfish and anemonefish.