Scuba divers enter the water never knowing what will be waiting for them on the reef below.
They roll out of the boat and descend into a world of beauty beyond description.
It is also a world of mystery and wonder.
Ocean creatures cruise over the coral in search of food, constantly moving, and every dive brings different sights and different experiences.
These divers have met up with a Hawksbill sea turtle.
It is a rare sight.
In fact, it is a critically endangered animal that many divers will never see close up.
Usually shy and reclusive, they typically avoid close contact with humans.