'You don't have to believe it, but I do!', says Cornishman Donovan Wilkins about the strange and wonderful art of water divining.
Even today, in remote areas, there is a need to find water the old way. For thousands of years man has been dowsing with forked sticks to 'look' beneath the earth in search of water. Donovan and his wife Margaret earn a comfortable living from nothing more than the twitching of a stick. They have improved the lives of thousands of people.
In the first of three films, the Wilkins family are called in to find water for a thirsty dairy herd.
Film cameramen
TREVOR ADAMSON , CLIVE NORTH Film editor CHRIS WARING Producer HOWARD PERKS BBC South West