Despite living around water all his life, only now has AGO photographer Mark Watson peered beneath the surface, finally taking the plunge by signing up to complete his PADI Open Water Certificate.
Broughton Island is home to the endangered grey nurse shark
There’s amazing diving right below the Hawkesbury
South Australia’s Ewens Ponds may be chilly, but these limestone sink holes make for excellent diving
The town may be small and sleepy, but there’s plenty of thrills to be had swimming with sharks just offshore.