Whitetip Reef Shark

Photo: Lukas Phan-huy · CC BY-NC

Whitetip reef sharks rest in the sandy chamber at the base of the blue hole during the day, sometimes stacking two or three animals across the same patch of sand. The enclosed environment makes approach distances short, allowing close observation of resting behaviour including the rare sight of sharks in apparently deep torpor. They exit through the arch at dusk to hunt the outer reef wall, returning reliably before dawn.