
Temna Dupka is a cave in the Kamenopole-Karlukovo karst area, in Lukovit municipality, near the village of Petrevene. Not to be confused with the much longer Temnata Dupka above Lakatnik station.
The Bulgarian Federation of Speleology register describes Temna Dupka in Lukovit municipality as a horizontal, single-level, branched cave, 157 m long, that floods from time to time. It is a dead end, with no through route.
Access is free, but the cave is not developed. There may be water inside after rain. Go in with a headlamp and helmet, and do not disturb the bats.
Petrevene is about 6 km from Lukovit, around 10 minutes by car.
Karlukovo with Prohodna Cave and Svirchovitsa Cave, and Lukovit.
Lovech region
2.4 km away
Lovech region
5.7 km away

Lovech region
5.8 km away

Lovech region
5.9 km away
Temna Dupka Cave is located in Lovech, Bulgaria.
Temna Dupka Cave 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.