Ciemna Cave in Ojców

In 2018 archaeologists found finger bones of a Neanderthal child in Ciemna Cave ("Dark Cave") dating back about 115,000 years – the oldest known human remains in Poland. The cave on Koronna Hill in Ojców National Park has the largest chamber on the entire Kraków-Częstochowa Upland and is one of the most important archaeological sites in the country. It can be visited only with a guide, during the summer season.

Neanderthals above the Prądnik Valley

The cave lies about 65 m above the floor of the Prądnik Valley, with its entrance facing south-west – a warm, defensible spot with a good view. The oldest flint tools found in its sediments are around 120,000–115,000 years old. Neanderthals lived here for long periods, perhaps on several occasions, and their traces are linked to the Micoquian culture, known in Poland as the "Prądnik culture" after this very valley. The sediments, in places more than 8 m thick, also contained burnt animal bones, used as fuel during the Ice Age when wood was scarce, along with remains of cave bears, cave lions, hyenas and wolverines.

The first excavations were carried out from 1898 by Stanisław Jan Czarnowski, and since 2007 research has been continued by scientists from the Jagiellonian University, the Archaeological Museum in Kraków and the Polish Academy of Sciences. The cave has been a protected monument since 1924.

What to see

The former system of passages and chambers is 209 m long in total. It consists of the cave proper behind an iron grille, the Tunnel, a rocky courtyard called Ogrojec and the Oborzysko Wielkie passage. The main chamber is almost 90 m long, about 20 m wide and in places over ten metres high.

• A stalagmite resembling a lion – about 30 m from the entrance, by the left wall.
• Potholes in the ceiling up to 4 m across, carved when the passage was completely filled with water.
• Straw stalactites, known locally as "macaroni", on the ceiling near a rock pillar.
• Walls blackened by the torches of earlier visitors.
• A reconstructed Neanderthal camp in Ogrojec and a viewing platform overlooking the Prądnik Valley and the Rękawica rock.

Inside, the temperature stays at 7–8°C all year, and about 20 bats hibernate here in winter, mostly greater mouse-eared bats and lesser horseshoe bats. The dripstone decoration is sparse, as most of it was destroyed by 19th-century visitors.

Did you know?

On 4 July 1787 a concert was held in the main chamber for King Stanisław August Poniatowski. Later visitors included Hugo Kołłątaj, Stanisław Staszic, Julian Ursyn Niemcewicz and Fryderyk Chopin. Between the wars, secret experiments on receiving radio waves underground were carried out here, which is why the cave was left out of the first post-war inventory of Polish caves.

Tripto tip

In the 2026 season the cave was open from 20 April to 14 September. Groups of 2 to 60 people enter on the hour, with the last entry at 16:00 on weekdays and 17:00 at weekends and on public holidays. Groups larger than 10 should book. The ticket office is by the paved road, and from there you face about 400 m of steep climbing – wear sturdy shoes and bring a warm layer. The tour inside lasts about 15 minutes. The green trail through the Prądnik Valley links the cave with the Deotyma's Needle rock, the Maiden Rocks and Ojców Castle ruins; check next season's dates on the Ojców National Park website.