Huda luknja cave is, as "an underground pearl of the isolated Karst", one of the main attractions of Koroško-Šaleška region. It is one of the oldest tourist caves in Slovenia, since it was open for visitors in 1895. The length of the so far explored cave is over 2300 meters and in its interior, it hides a range of special features.
The hike through the hills Tisnik is the right choice for those who would like to see the cave with the caving gear. A two-hour-hike of adrenaline strain, accompanied by caving guides, satisfies even the most demanding visitors. Trekking is carried out by at least three guides from 1 April to 31 October. They guarantee safety and at the same time, they give basic information about the cave and its surrounding.