Travelling on foot and by canoe, mapmaker Garrett Carr follows the border between the UK and Ireland.
At the twistiest stretch of the border, the author battles with boy racers on the narrow roads of County Fermanagh.
Read by John Paul Connolly
Abridged by Anna Magnusson
Producer: Eilidh McCreadie
First broadcast on BBC Radio 4 in March 2017. Show less