uhlovitsa cave

100 18072017 among ancient attraction average background bulgaria capillary cave caves cavescape cliffs climbing drop entrance europe european formation free geological geology historycal humid inside interior landscape limestone located mineral mogilitsa moist national nature northeast palaeolithic people per rhodopes rock rocks shape sight sightseeing sites sky smilqn smolyan speleology stalactite stalagmite stalagtone stone stones summer tourism tourist travel uhlovitsa underground village visits water wonderful year