Veliki Šubir

Veliki Šubir rises above the village of Otrić-Seoci, the largest settlement in the municipality of Pojezerje in Dubrovnik-Neretva County, southern Croatia. The peak reaches 503 metres above sea level and, together with the neighbouring Mali Šubir, forms a small massif that belongs to the central Dalmatian stretch of the Dinaric Alps, running inland from the coast toward the border with Bosnia and Herzegovina. This is a quiet, rarely visited corner of Dalmatia, far from the crowds of the coastline, and it appeals mainly to hikers who enjoy solitude and a genuine geological curiosity.

Where is Veliki Šubir?

The hill lies inland, within the municipality of Pojezerje, a dozen or so kilometres from the Adriatic coast and close to the border with Bosnia and Herzegovina. Otrić-Seoci, at the foot of Šubir, had 689 residents according to the 2021 census, making it the largest village in the entire municipality. The surrounding landscape is typically Dinaric: rocky ridges, shallow valleys and scattered rural buildings spread across the fields.

What is there to see?

The main draw of Veliki Šubir is not the summit view but what its northern slope revealed. During construction of the A1 motorway connecting Zagreb, Split and Dubrovnik, between late 2009 and April 2010, workers uncovered what are known locally as "stone spheres" — natural mineral concretions, roughly spherical, ranging from a few centimetres up to thirty centimetres across. Their interior shows a laminated structure and a silicate-carbonate composition. Geologists date them to the Upper Cretaceous, specifically the Turonian stage, around 90 million years ago, when the area lay beneath the ancient Tethys Ocean. Because of how unusual the find is, the stone spheres were placed under protection in 2011 as a mineralogical curiosity under Croatian nature conservation law. For visitors, it is a rare chance to see physical evidence of geological processes tens of millions of years old without setting foot in a museum.

How to get there?

The easiest way is by car: leave the A1 motorway toward Pojezerje and continue on local roads to Otrić-Seoci, from where dirt tracks and paths lead up toward the hill. Since tourist infrastructure here is minimal, it is worth asking locally for the exact spot where the stone spheres were exposed, as it is not marked with large signage. The area also works well for cycling, since the roads are winding but see little car traffic.

When to visit?

Spring and early autumn are the best times to come, when temperatures inland in Dalmatia are milder than in summer and the climb up the hill feels less demanding. In summer, the rocky, largely unshaded slopes heat up quickly, so it is best to set out in the morning. Winter weather can be unpredictable, but the area remains accessible to visitors prepared for cooler conditions.

Frequently asked questions

How high is Veliki Šubir? The peak reaches 503 metres above sea level.

What are the stone spheres of Veliki Šubir? They are natural mineral concretions with a laminated internal structure, uncovered during construction of the A1 motorway between 2009 and 2010, and dated to around 90 million years old.

Is it easy to reach Otrić-Seoci? Yes, the simplest route is by car via the A1 motorway, exiting toward the municipality of Pojezerje and continuing on local roads to the village.

How many people live in Otrić-Seoci? According to the 2021 census, the village had 689 residents, making it the largest settlement in the municipality of Pojezerje.