Vjetrenica is the largest cave in Bosnia and Herzegovina, and the most biodiverse cave in the world. It is part of the Dinaric Alps mountain range, which is known for its karstic and speleological features. The cave is located in the Popovo field in Ravno, East Herzegovina in the Federation of Bosnia and Herzegovina.
Vjetrenica is located in Popovo Polje (pronounced [pɔ̌pɔʋɔ pɔ̂ʎɛ], meaning priest’s field, where polje stands for karstic plain), which is itself located in a southernmost regions of Bosnia and Herzegovina, West Herzegovina, near the Adriatic coast. Its entrance is near the village of Zavala, in west – south-western corner of polje. In the warmer parts of the year a strong blast of cold air blows from its entrance, which is very attractive in the middle of the rocky, hot and waterless terrain.