In this classic from the BBC archive, Ray Mears takes Hollywood movie star Ewan McGregor in search of the ultimate adventure through the dense jungles of Honduras.

After just a few basic lessons in survival from Ray, the duo set off on a four-day trek. But Ray is no soft option travelling companion. He tests people to their limits, and Ewan must live up to his taskmaster’s expectations, enduring daily downpours and the jungle’s bugs. Their destination is the ruins of a lost civilisation, a huge, overgrown plaza, unvisited for centuries. This is a trip that money can’t buy.