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Sannur Cave was discovered in the 1980s after blasting in a quarry created an entrance. It is 10 km (10 mi) southeast of the city of Beni Suef.
It has only one chamber which is about 700 m (2,300 ft) long and 15 m (50 ft) in diameter.
It is a limestone cave overlaid with alabaster created by thermal springs. Its unique geology and beautiful formations (stalactites and stalagmites led it to being recognised as a Protected Area in 1992.
- Bright, Michael (2009). 1001 Natural Wonders You Must See Before You Die. Unesco Edition. Mitchell Beazley. ISBN 978-1-84403-644-8.