In the grips of the California drought, winemakers are doing anything they can to locate water to continue producing wine. One option is dowsing or "water witching"-a practice which uses divining or dowsing rods to find water underground. Practitioners claim the rods locate unseen water using energy from the practitioner's body. Winemaker Marc Mondavi is a third generation winemaker and water witcher who has been sought after by vineyard owners and farmers for help during California's record drought. Mondavi preaches the power of water witching even though he admits the lack of science behind it.