The Chetirtska Cave, also registered under the name "Uske," is a small yet intriguing geological site located in Southwestern Bulgaria. Situated at the confluence where the Eleshnitsa River flows into the Struma River, this cave is an excellent spot for a quick, effortless detour for travelers exploring the Kyustendil and Nevestino regions.
The cave is completely horizontal and perfectly safe for casual exploration without professional guidance.
The cave was first surveyed and mapped in 1967 during a National Speleological Expedition by R. Radushev and L. Popov from the Sofia-based caving clubs "Edelweiss" and "Aleko." The cave was officially re-mapped on May 23, 1983, by L. Popov, V. Vasilev, and P. Chichkan.
Kyustendil
9.5 km away
Kyustendil
16.6 km away
Kyustendil
18.0 km away
Chetirska Cave (Uske) is located in Kyustendil, Bulgaria.
Chetirska Cave (Uske) is most easily reached by car. Use the coordinates above to navigate, or open the location in OpenStreetMap or your preferred maps app for turn-by-turn directions. Public transport options vary by region — for remote destinations a rental car gives the most flexibility.
Caves can be visited year-round — the temperature inside stays roughly 10–12°C regardless of season. Spring and autumn are quieter than peak summer. Bring a warm layer and sturdy footwear; some caves close in winter when access roads become impassable.
Access to caves varies. Show caves typically run guided tours during posted opening hours; wild caves require proper equipment and experience. Inside, the temperature stays cool year-round (~10–12°C) — bring a warm layer, sturdy non-slip footwear, and a torch even on guided tours.
