The raucous chorus of black cockatoos deep in the rainforest echoes loudly in the crisp morning air. A thrush hops around excitedly around picnic tables, hoping a visitor arriving in a car may save the energetic little bird the bother of seeking its own breakfast. The picnic ground and car-park...

My encounter with a leopard shark supported what Jerome, our skipper from Sundive Dive Center in Byron Bay in Northern New South Wales Australia, had told me earlier on in the day.  I had asked him at the time if you see much when you snorkel the Julian Rocks Marine Reserve.  “You see...