The Balaa gorge sinkhole is a waterfall in Lebanon. The waterfall drops 255 metres (837 ft) into the Balaa Pothole, a cave of Jurassic limestone. The cave is also known as the Cave of the Three Bridges. The three natural bridges, rising one above the other and overhanging a chasm descending into Mount Lebanon.
Serge Melki from Indianapolis, USA, CC BY 2.0, via Wikimedia Commons
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