Caves within an hour or two of Postojna

Postojna Cave is a large karst cave system on the edge of the town of Postojna in the Primorsko-notranjska region. Visitors travel deep into the cave by a small underground train before continuing on foot past halls of stalactites and stalagmites, and the cave is also known as home to the olm, the blind cave salamander. It is an easy day trip from Ljubljana, and the visit is a guided underground walk on paved paths.

Otok Cave (Otoška jama) is a karst cave in the Primorsko-notranjska region of southwestern Slovenia, on the Notranjska karst near Postojna. It is a quieter stop for visitors interested in the underground landscape of this cave-rich area. Check access conditions locally before going, as the cave is not a standard show-cave walk.

Črna jama (Black Cave) is a karst cave in the Primorsko-notranjska region of southwestern Slovenia. It lies in the Postojna area and forms part of the wider cave system around Postojna, where underground passages carved by the Pivka river run beneath the karst plateau. It makes a good stop for visitors interested in the karst landscape of inner Carniola, with the town of Postojna as the nearest base.

Black Cave (Črna jama) is a karst cave in the Primorsko-notranjska region, part of the cave landscape around Postojna. It is known for darker passages than its neighbours, and it belongs to the wider Postojna cave system. The cave lies just north of Postojna in Inner Carniola, and access is usually arranged as an organised visit rather than an independent walk.

Pivka Jama is a karst cave in the Primorsko-notranjska region of inner Slovenia, where the Pivka river flows underground. It belongs to the same karst landscape as the better-known caves around Postojna, a few kilometres to the south. Expect a walk down into a collapse doline and along underground passages, so bring sturdy shoes and a warm layer.

Betalov Spodmol is a cave in the karst landscape of the Primorsko-notranjska region, close to Postojna. It is known as an archaeological site where traces of Stone Age people were found, making it a quiet addition to a day around the Postojna karst. The entrance lies in wooded terrain just outside the town, reached on a short walk.

Planina Cave is a karst cave in the Notranjska region, near the village of Planina by Planinsko polje. It is a water cave, where underground rivers flowing through the karst meet and emerge as the Unica river. The cave lies a short drive from Postojna and suits visitors interested in the Notranjska karst beyond the better-known show caves.

Weaver's Cave (Tkalca jama) is a karst cave in the Primorsko-notranjska region of inner Slovenia. It is a natural feature of the limestone landscape typical of the Notranjska karst, worth seeing for anyone interested in caves and underground water. It lies in the countryside south of the Ljubljana basin, so plan it as part of a day exploring the surrounding karst.

Veliki naravni most (Great Natural Bridge) is a karst arch left from the collapsed roof of a cave in the Rakov Škocjan valley, in the Primorsko-notranjska region near Cerknica. The stone bridge spans the gorge of the Rak stream and shows clearly how underground karst passages give way to open valleys. It is reached on easy forest trails through the Rakov Škocjan park, a pleasant walk combined with the nearby Mali naravni most.

Škratovka jama is a small cave in the karst landscape of the Primorsko-notranjska region, in the Notranjska area of inner Slovenia. It is a quiet stop for those interested in the underground features that shape this limestone countryside. Visitors should expect a natural, undeveloped site rather than a show cave, so sturdy footwear and a light are sensible.

Mali naravni most (Little Natural Bridge) is a natural rock arch, the remnant of a collapsed cave roof, in the Rakov Škocjan karst valley in the Primorsko-notranjska region. It is one of the classic karst features of the valley and can be reached on the easy forest trails that run through the valley near Cerknica.