1. It's a cave placed in Ravno in Bosnia and Herzegovina
2. In the warmer parts of the year a strong blast of cold air blows from its entrance
3. In English, you would call this cave a Wind Cave

Vjetrenica (Wind cave) is a protected monument of nature since 1950... This cave possesses numerous wide halls and passages, lakes, couple of waterfalls, very rich cave world and among them many endemic species... Other interesting thing about this cave is the strong wind that could be felt at the entrance and in couple of places inside...The average temperature inside the cave is approximately 11 C, no matter what's the temperature outside.