Blue Light Gallery Although the grey nurse shark

Although the grey nurse shark looks quite threatening

Big-eye Trevally schooling on the edge of the reef are an important part of the marine eco system providing food for larger reef predators including dolphins and sharks

I was grateful for the company of this endangered green turtle

A friendly green turtle with a twinkle in her eye swimming over shallow reef near Lady Elliot Island allowed me this intimate Great Barrier Reef encounter

Humpback whales resting in the warm waters of Tonga before making the long journey back to Antarctica

Blue Light Gallery Although the grey nurse sharkWolf Rock is a known gestation site for the critically endangered grey nurse shark and up to 50 sharks can be seen here at any one time all year round. Although the grey nurse shark looks quite threatening, it is very placid and my main focus was to be as still as possible and breathe slowly so as not to spook them as I waited patiently for a big female to swim slowly past me.