JONATHAN WILKINS / SCIENCE PHOTO LIBRARY JONATHAN WILKINS / SCIENCE PHOTO LIBRARY
Entrance to the North Point Caves, Barbados. The Animal Flower Cave has a coral floor which is estimated to be about 400,000 to 500,000 years old, whereas the younger coral section above the main floor is about 126,000 years old. This dating was carried out by the German Geological Institute. The swimming pool, as the guides call it, is in a chamber all by itself. The totally transparent and absolutely still water does not reveal its depth but looks deceptively shallow. The smooth floor of the cave worn down by the water and the rubbing action of the coral rocks over time has an undulating formation and the light lends a magical quality to this chamber. At certain times of the year and in bad weather the caverns become filled with water and the entrance.
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