There is the Great Barrier Reef, the Phuket Sky Dive Reef and the Breaker Reef. There is the Bucco Reef in Tobago.
Pollution and overfishing has posed threats to the Great Barrier Reef.
The Great Barrier Reef itself is a landform. Some of the features found on the Reef include:Coral reefs and atollsIslandsBaysInletsPeninsulas
Probably, seeing as it is the 'Great Barrier Reef', there might be some in the deep, dark depths of it!
Snorkelling
One of the most reliable sources of information on the Great Barrier Reef is the website for the Great Barrier Reef Marine Park Authority. The website is at the related link below.
Shark species in the Great Barrier reef include:various species of reef shark (the most common of the sharks in the Great Barrier Reef) such as grey reef shark and whitetip reef sharklemon sharkvarious species of wobbegong sharkcoral catsharkleopard sharktiger shark
A fringing reef forms a continuous underwater "wall" for some distance, where as a "barrier Reef" are shorter in distances, and have large gaps in them....and will be between shore and the Barrier Reef..............Sea Rambo
CORALS
sharks
fish.
Scuba Diving, exploring the reef itself, fishing.