Wigtown Expedition: the Source of the River Bladnoch

Wigtown Book Festival's intrepid adventurer and explorer in residence Robert Twigger took a break from trying to find the wisdom of the town and embarked on a thrilling expedition yesterday. His aim: to find the source of the mystical River Bladnoch. Find out how he got on in the Audioboo below:

And here's the map Robert made of the expedition.