Meet the people who keep the lights on at two lighthouses off the south-west coast

There's a poignancy to Dan MacCarthy's helicopter trips to two lighthouses off the south-west coast - one with a former lighthouse keeper whose job is now mechanised.

From 500 metres above a hulking rock off the Kerry coast, travelling at 200kph, Scottish pilot Jim Moseley directs his helicopter in a northerly direction and takes aim at a circular landing platform not much bigger than a couple of tents.