Jaita I

Jeita Grotto مغارة جعيتا
Upper cave at Jeita with the walkway
Location	Jeita, Lebanon
Coordinates	33°56′36.20″N 35°38′28.89″E / 33.9433889°N 35.6413583°E / 33.9433889; 35.6413583Coordinates: 33°56′36.20″N 35°38′28.89″E / 33.9433889°N 35.6413583°E / 33.9433889; 35.6413583
Length	9 kilometres (6 mi)
Discovery	1836
Geology	Karstic
Entrances	2
Difficulty	none
Access	Jeita Grotto official website
Translation	roar or noise (water) (Aramaic)

The Jeita Grotto (Arabic: مغارة جعيتا‎‎) is a system of two separate, but interconnected, karstic limestone caves spanning an overall length of nearly 9 kilometres (5.6 mi). The caves are situated in the Nahr al-Kalb valley within the locality of Jeita, 18 kilometres (11 mi) north of the Lebanese capital Beirut. Though inhabited in prehistoric times, the lower cave was not rediscovered until 1836 by Reverend William Thomson; it can only be visited by boat since it channels an underground river that provides fresh drinking water to more than a million Lebanese.

In 1958, Lebanese speleologists discovered the upper galleries 60 metres (200 ft) above the lower cave which have been accommodated with an access tunnel and a series of walkways to enable tourists safe access without disturbing the natural landscape. The upper galleries house the world's largest known stalactite. The galleries are composed of a series of chambers the largest of which peaks at a height of 120 metres (390 ft).

Aside from being a Lebanese national symbol and a top tourist destination, the Jeita grotto plays an important social, economic and cultural role in the country. It was one of top 14 finalists in the New 7 Wonders of Nature competition.

The Jeita cave is situated at the center of the western flanks of the Lebanon mountains, more specifically in the Nahr al-Kalb valley, its natural entrance is about 100 metres (330 ft) above sea level. It's located 5 kilometres (3.1 mi) east of the Mediterranean coastline and 18 kilometres (11 mi) north of Beirut within the confines of the municipality of Jeita, in the caza of Keserwan.

Ancient vestiges of a foundry were found in a smaller cave near the Nahr al-Kalb river, suggesting that the cave was used in antiquity to produce swords.