Crna Jama Cave

Crna Jama is located 3 kilometers from Postojna, in the lush green countryside. This cave is open for tourists everyday from June to September and connects to the main Postojna cave system further down the line. The cave is bisected by the River Pivka, and you will descend to the bottom of a steep plunge into the wide cave channel.

After there, the road follows the river through the cave until it reaches a very tiny corridor that leads to yet another tunnel. Because of the hue of the speleothems found inside, the cave is also known as Black Cave. It's worth noting that there aren't many chambers in this cave; instead, it's one long corridor.

Crna Jama (Black Cave) was named after the speleothems' black color. Smoke from torches and other sources of fire typically stained the speleothems. It was different in this cave. When man first entered the cave, the speleothems were already black. According to one idea, smoke from massive fires outside the cave entered the cave and colored the speleothems. The area was more or less like steppe during the Ice Age, when the temperature was quite low, and the dry remains of trees and plants frequently caught fire. As a result, the cave's stalagmite is a rich resource for climatology research.

Crna Jama is essentially one large chamber. The floor has been smoothed, and the space, like many other caves in the vicinity, has been utilized for celebrations. Postojna Cave is reached via a tunnel at the far end. However, despite being the largest of the three, the hall was rarely used. The issue is the cave's entrance, which is shaped like a large bowl and acts as a cold trap, allowing chilly air to flow into the cave throughout the winter.

Length: unknown

Location: Postojna, Slovenia