Lady Elliot Island 

Lady Elliot Island is a coral within the Capricorn Bunker group of island, which includes Heron and Lady Musgrave island.
The island is situated in the middle of a 'Green zone' which offers it full protection both on land and the reefs surrounding the island.
The marine life here is some of the healthiest I have seen.
Most people visit for the chance to see mantas, but there is so much more to experience on every dive.