Huge caverns discovered in 1959 by local boys while out hunting bats. Cave paintings and remains show that these caves were inhabited 30,000 years ago. Impressive limestone formations which include a stalagmite and stalactite over 105ft high and 59ft in diameter. A vast underground cathedral, spot the small figures in the background. Light levels were low, so high ISO and camera resting on a handrail, no flash allowed (although that would not help much). Nerja, Costa del Sol, Spain.