Resava Cave or Resavska Cave is a cave near Jelovac in eastern Serbia, about 20 kilometres (12 miles) from Despotovac. It is one of the largest cave systems in Serbia, with the corridors about 4.5 kilometres (2.8 miles) long.
The cave is located in the Upper Resava region. The cave is estimated to be 80 million years old while the oldest speleothems date from 45 million...