The rock below and on the floor of the cave is highly polished by the thousands of feet searching expectantly for pirate treasure or smugglers' booty. All I found was a faint whiff of wee - I think some people think this is the local loo.
Uploaded to Geograph by Karl and Ali on 23 February 2013
Photo © Karl and Ali, 23 February 2013. Licensed for reuse under this Creative Commons licence