I flew out to PNG specifically to shoot this image. Upon arrival I knew I would only get one chance to get it right, so I spent the day testing lens & lighting experiments on a small piece of driftwood about the same size as the turtle (4cm) to get my technique perfected before the real event. In the end I opted for a 4”port with the fisheye with 2 snooted strobes. One strobe above the water pointing down and the other underwater pointing up at the hatching. When my chance came to get this shot I had less than a minute to nail it, the extensive preparation paid off.