Jeita Grotto, located in the Nahr al-Kalb valley in the Keserwan District of Lebanon, stands as a monumental natural wonder comprising two separate, but interconnected, karstic limestone caves. Spanning an overall length of around 9 kilometers, these caves were formed through the dissolution of limestone by acidic water. Jeita Grotto is composed of an upper chamber that greets visitors with an impressive array of stalactites and stalagmites, meticulously crafted by nature over millions of years. The lower section, accessible by boat due to the subterranean river that flows through it, offers a unique experience to behold the might and artistry of geological formations. Discovered in the 1830s, Jeita Grotto was opened to the public in 1958. It quickly assumed a significant role as a national symbol and a top tourist attraction. Beyond its touristic appeal, the Grotto also serves as a major source of fresh water for the surrounding region, supplying Beirut with potable water.