Mtirala National Park: The Crying Mountain's Rainforests and Superlative Rainfall
Mtirala National Park, located in Georgia's Adjara region in the southwestern Lesser Caucasus mountains, is one of the world's most unique ecosystems and was recognized as a UNESCO World Heritage Site in 2021. The park's name, derived from the Georgian word for "to cry," captures its defining feature: an extraordinary precipitation rate of over 4,000 millimeters (157 inches) per year. This makes Mtirala one of the wettest and most humid locations in the world. Its funnel-like geographic position between the Greater and Lesser Caucasus ranges traps moisture-laden air, resulting in rainfall of approximately 4,520 millimeters (178 inches) at peak elevations.
The park covers 15,698 hectares (38,790 acres) and is divided into terraced elevation levels that cascade toward the Black Sea. At lower elevations, the park features Colchian relict forests—species that survived ice ages in this protected refuge. The vegetation transitions through beech groves, Pontic oaks, and boxwood thickets up to alpine meadows. Deep gorges cut through the landscape, leading to features like a stunning 15-meter (49-foot) waterfall that plunges into a pristine mountain lake. Even in summer, this crystal-clear lake remains cold at around 15 degrees Celsius (59 degrees Fahrenheit), offering a bracing swim for the brave.
Hiking paths in Mtirala offer a chance to explore this ecological diversity over short distances. Lower routes of about 1.5 kilometers (0.9 miles) lead to the mountain lake, while upper trails access the waterfalls. The constant moisture supports almost impenetrably green vegetation, making the park a critical refuge for endemic species and organisms that have survived global climate changes over millions of years. Mtirala provides a one-of-a-kind opportunity to witness a geographically extreme ecosystem where ancient forests and tremendous topography create a setting of mystical beauty.