By helicopter and ship, a group of men - and one woman - work around the clock to maintain the buoys, light ships and lighthouses that keep our shipping lanes open for business. Show more
Discover 11,128,835 listings and 279,443 playable programmes from the BBC
By helicopter and ship, a group of men - and one woman - work around the clock to maintain the buoys, light ships and lighthouses that keep our shipping lanes open for business. Show more