Mrzla jama near Bločice v1.0

Mrzla jama near Bločice is a water cave on the edge of the Bloke plateau. Water from a wide area collects in Farovščica ponor and disappears underground. On its way to Cerkniško polje it comes to the surface in Mrzla jama for a moment. From there, most of the water flows towards the lower springs of Šteberščica and Žerovniščica, and only partially towards the spring in Podlož and the well-known Cross cave (https://ojs.zrc-sazu.si/carsologica/article/view/147/137). The first cartographic entry of the cave dates back to 1972, when the cavers explored the first upstream siphon and reached the first chamber (90 m into the cave). Then, in 2001, Igor Vrhovec and Matej Mihajlovski dived into the second siphon and explored the cave to a length of 128 m, but they did not find a continuation at that time. In 2019 and 2020, we continued with the research and precisely measured and plotted the cave up to a total length of 423 m. The cave continues.