The pillars are composed of limestone, sand, and clay, and many contain marine fossils such as nummulites.
The name 'Pobiti Kamani' translates literally from Bulgarian to 'driven-in stones'.
It is the only place in Bulgaria with true desert-like ecological conditions, supporting rare flora and fauna.
Scientists have noted that the columns are essentially giant, vertical concretions formed by ancient methane-oxidizing bacteria.
The site was historically believed by locals to be the ruins of a giant temple or a petrified army.
Some columns are hollow, while others are solid, leading to the theory that they formed around subterranean gas vents.
Pobiti Kamani is a desert-like natural phenomenon consisting of thousands of hollow limestone pillars, some reaching up to 7 meters in height. The site is one of the few recognized deserts in Europe, covering an area of approximately 13 square kilometers. Geologists generally agree the formations date back 50 million years to the Eocene Epoch, though their exact origin remains a subject of scientific debate. Theories include the fossilization of ancient coral reefs or the result of gas seepage through sandy seabed sediments. The columns are primarily cylindrical and often fragile, with many appearing as if they were intentionally planted into the sand. The site has held protected status as a natural landmark since 1937 and is currently managed as a protected area within the Varna province. It sits at an elevation of roughly 130 meters above sea level. Visitors explore the site via established sandy pathways that weave through the primary concentrations of stone columns.
The center of the main 'Dikilitash' group, where the tallest and most densely packed columns provide the best sense of scale.
Wear sturdy, closed-toe shoes to protect your feet from hot, loose sand and uneven, rocky terrain.
Bring ample water and sun protection, as there is almost no natural shade throughout the desert area.
Visit during the shoulder seasons to avoid extreme temperatures during the midday sun.
Attempting to visit during the hottest hours of a summer day without adequate hydration, as the sand retains heat and there is no canopy cover.
Open daily during the main tourist season (spring through autumn); may have limited staffing or access during winter months.
Stick to marked trails to protect the fragile soil and rare desert plants; do not climb on the stone pillars as they are prone to erosion.
