Every time a turtle was washed back by the first wave, it would be covered in glowing phytoplankton. After a while, the whole beach became a sight of bioluminescent-covered turtle hatchlings.

We had just begun moving toward the deeper blue when something quite eerie and unsettling started to unfold before my eyes. A white object was swaying in the depths. At first, I thought it was a white plastic bag sinking. But I quickly realised that a plastic bag is too light to sink so rapidly, unless tides and currents were stagnant.