Clare Balding visits the extremities of the United Kingdom, from the Scilly Isles to the Orkneys, and walks with people for whom these places are just 'home'.

Clare arrives by helicopter and then motor launch to the most westerly of the Isles of Scilly for a gentle stroll around its perimeter.

The resident artist and his wife, Richard and Caroline Pearce, tell of shipwrecks in days gone by and of the joys, frustrations and quirks of island life today when debris washed up is still seen as treasure.