Description
The Jeita caves are solutional karst caves which have formed over millions of years due to the dissolution of limestone. The limestone is dissolved by carbonic acid charged rain water and groundwater; when the limestone, which is originally water proof, contains cracks produced by tectonic forces the water oozes into the rock and starts to widen the cracks and solute caves inside the layers. Jeita is the longest cave complex in the Middle East;, it sits at 300 metres (980 ft) above sea level and has a height difference of 305 metres (1,001 ft). Geologically, the caves provide a tunnel or escape route for the underground river, which is the principal source of Nahr al-Kalb.
The Jeita grotto is the longest explored cave in Lebanon. After many years of exploration, speleologists have penetrated about 6,200 metres (20,300 ft) from the entry point of the lower grotto to the far end of the underground river and about 2,130 metres (6,990 ft) of the upper galleries.
Read more about this topic: Jeita Grotto
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