Page 247 - The British Big Four
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Bahamas’s Blue Holes and Caverns
M ost of the Bahamas is a hard lime- caverns filled with water can serve natural
stone with the highest elevation 210 wells. A blue hole is a cave (inland) or un-
feet above sea level. Rainwater on its re- derwater sinkhole. They are also called ver-
turn to the sea has broken open gaps in the tical caves. There are many different blue
subsurface, forming cavities. A blue hole is holes located around the world, typically in
a natural pit, or sinkhole resulting from the low-lying coastal regions.
collapse of limestone bedrock that exposes
groundwater underneath. Blue holes and
