Beau Ouimette is a master Relic Hunter who specialises in shallow water river hunting. For over thirty years he has been searching in rivers across America and is a YouTube sensation with over a million followers, regularly posting videos with news of his latest finds on his Aquachigger channel - often using his well-known catchphrase: 'Hold your breath!' He has found anything and everything from civil war relics, a hoard of silver coins from 1837 and 1700s Dandy buttons. He uses the latest kit in submersible metal detectors, holds his breath …