The Last time Andy spoke to Paddy Dillon he talked about hiking and backpacking in Ireland. But as the colder weather comes to the UK Paddy heads south, to hike the mountains, islands and coastlines of the Mediterranean, an area about which he has written a number of best selling guide books. Perhaps, the most popular of these is Paddy's guide to the legendary GR20 route that crosses the rugged, mountainous, island of Corsica.