Tourists walk down a twisting mountain path in the Paul Valley on the island of Santo Antao in Cape Verde...
Tourists (L) walk down a twisting mountain path in the Paul Valley on the island of Santo Antao in Cape Verde, off the coast of West Africa, May 14, 2012. Picture taken May 14, 2012. REUTERS/Finbarr O'Reilly (CAPE VERDE - Tags: TRAVEL SOCIETY)