As November starts, Monty realises that he has loads of work to do, and little time left. To help open up the islands to tourists he's writing a guide book to a series of trails. This week, he investigates the Bonnie Prince Charlie route on horseback - following the prince's escape route from the islands in 1746 after his abortive attempt to seize the English throne. He also heads south to Vatersay, to help with an anti-erosion project, then up to Benbecula to join a hedgehog patrol, trapping this introduced and unwanted species for relocation to the mainland. Before ...

• Monty Halls