The cave remains a constant temperature of 15 degrees Celsius year-round, regardless of external weather conditions.
The first part of the cave was discovered by the landowner, Stipe Punda, while he was searching for water sources.
The cave is formed within the limestone bedrock typical of the Dalmatian hinterland.
It is officially designated as a geomorphological natural monument under Croatian law.
Vranjaca Cave is a protected geomorphological natural monument located at the foot of the Mosor mountain range in the village of Kotlenice. The cave consists of two parts, with the first discovered in 1903 by Stipe Punda and the second, deeper section explored later in 1929. The site is known for its diverse karst formations, including stalactites, stalagmites, and colorful flowstones. Visitors descend approximately 65 meters below the surface through a series of concreted paths and stairs. The interior maintains a constant temperature of around 15 degrees Celsius throughout the year. The site has been open to the public as a tourist attraction since the early 20th century. Its subterranean passages are illuminated by modern artificial lighting to showcase the rock features. The site is managed by local heritage authorities to preserve its fragile ecosystem.
The main cavern hall, where the widest perspective of the stalactite clusters is visible from the central staircase landing.
Bring a light jacket as the underground temperature is significantly lower than the outdoor summer heat.
Wear closed-toe footwear with good grip to handle the steep and potentially damp metal staircases.
Visit on a weekday to avoid crowds, as the narrow paths can become congested during peak weekend hours.
Do not attempt to explore beyond the marked concrete paths or enter cordoned-off areas, as the cave floor can be slippery and hazardous.
The cave is typically closed during the winter months, reopening annually in the spring.
Do not touch the stalactites or stalagmites, as natural oils from human skin can disrupt their mineral growth and discolor the rock.
