Pazinska jama

Pazinska jama (Pazin Cave) is a karst chasm right in the heart of Pazin, the capital of Croatian Istria, sitting directly beneath the town's medieval castle. It's one of the most striking natural sights on the peninsula – a river suddenly vanishes into the earth through a deep, dark sinkhole, with a fortress perched on the cliff above.

What exactly is it?

The chasm formed where the Pazinčica River (also known locally as the Fojba) hits a wall of limestone rock after flowing through town and disappears into an underground channel. The sinkhole plunges more than 100 meters, and above it, roughly 130 meters up, stands Kastel – the castle that today houses the Ethnographic Museum of Istria. After vanishing underground, the water continues through subterranean passages, resurfacing kilometers away in another part of the region. The first serious speleological research here was carried out in the late 19th century by French speleologist Édouard-Alfred Martel and W. Putick, who attempted to map the river's underground course.

Why is it famous?

The abyss has long fired writers' imaginations. Jules Verne featured it in his 1885 novel "Mathias Sandorf," even though he never actually visited Pazin – he based his descriptions on accounts by French traveler Charles Yriarte, and still managed to render the landscape remarkably accurately. Local legend also claims the dark, vertical pit may have inspired Dante's vision of hell in the "Divine Comedy." That connection can't be verified historically, but the story has been passed down for generations and local guides love to retell it.

How do you get there?

Pazinska jama sits right in central Pazin, a few minutes' walk from the main square and the bus station. The town is well connected to the rest of Istria, with buses running from Pula, Rovinj, and Poreč, and Pazin also lies on the railway line linking Istria to the rest of Croatia. A viewing point next to the castle and a path descending toward the canyon let visitors get close to the rock walls.

What will you see there?

From the viewpoint by the castle you get a full view down the throat of the canyon, right to the spot where the river disappears underground. It's worth following the path further down for a view of the chasm from the riverbed side, which gives a much stronger sense of scale. Kastel castle itself, perched literally on the edge of the abyss, deserves a separate visit – besides the museum, it offers views from its defensive walls. Marked walking trails run along the canyon nearby, popular with photographers and anyone after a quiet stroll.

When should you visit?

Spring and autumn are ideal, with mild temperatures and more water in the river after rainfall, which makes the sight more dramatic. Summers in Pazin can get hot, but the site is partly shaded by rock, so it's worth visiting year-round. Early morning or late afternoon light works best for photographing the canyon walls.

Frequently asked questions

Can you climb down into the pit itself? No – for safety reasons, the chasm is viewed from designated lookout points and the path along the canyon rim, not from inside.

How long does a visit take? Walking around the chasm and viewpoints takes about 30–45 minutes, but plan for 1.5–2 hours if you're also visiting the castle.

Is there an entrance fee? Viewing the chasm from the public lookout points is free; a fee applies only to entering the castle and museum.

Is it really true it inspired Dante? That's a popular local legend without historical confirmation, unlike the well-documented connection to Jules Verne's novel.