About 10km south of the port, this huge and atmospheric cave remains impressive despite much looting of stalactites and stalagmites in the past (check out the ancient graffiti from past visitors; one dates from 1776). Descending the 400-plus steps into the cave can be a dank affair – beware the climb out! To reach the cave, follow the coastal road south until you reach a signed turn-off. A bus runs here from the port (€1.60).
