Bogovina Cave, Cave in the Kučaj mountains, Boljevac, Serbia

Bogovina Cave has 5,020 m of passages in Mesozoic limestone, with a 550 m section developed for visits covering 2,201 m². Its entrance is a mining-shaft opening 4 m wide and 5.35 m high at 268.3 m elevation. Dragutin Petrović distinguished three levels: the High (Dry), Main (Periodic) and Ponor (River) horizons.

Jovan Cvijić never learned of Bogovina Cave because villagers kept it as a shelter and hid it from him. Dragutin Petrović mapped 3,118 m in 1957 and 3,157 m by 1961. In 1975–1976, Petrović, Gavrilović and Lješević added 1,503 m, bringing the total to 5,020 m. In 2020, fossil teeth of Stephanorhinus hundsheimensis from the cave were published, the first documented occurrence of this species in Serbia.

Local people long kept the cave as a shelter and hiding place and did not tell the geographer Jovan Cvijić about it, so he never surveyed what was then Serbia's longest cave. Today the entrance lies on Srbija šume land, with an info centre and guided service in a hunting lodge about 200 m away.

The cave lies about 14 km from Boljevac and 6 km from the Paracin-Zajecar main road, reached by a gravel track from the Bogovina coal mine. A footpath leads to the entrance, and an info centre with guides and catering sits in a hunting lodge about 200 m away. The arranged section runs 550 m.

Jovan Cvijić, the founder of Serbian karstology, never knew of this cave, then the longest in Serbia. Villagers kept it secret as a shelter and hiding place, and only the first 1,000 m were known; beyond lay a water siphon passable only in dry years.