Rewilding Patagonia

Carmen Roberts heads to Chile to see the results of what some people are calling the world's biggest rewilding project; The team meets the artist and historian on a mission to catalogue all the Islamic public art in the Lebanese city of Tripoli, before neglect and the elements do their worst; and we catch up with adventurer Karolis Mieliaskausas as he attempts to travel the length of Sri Lanka's Hamilton Canal by kayak.