A body believed to be Jeremy Charles Brons has been recovered from the Grey River by police this afternoon.
The body was found about 1km downstream from where Mr Brons was last seen.
Mr Brons was the navigator in a four-wheel-drive trek that involved crossing the Upper Grey River, a couple of hundred metres away from Staircase Creek, near Waipuna.
He was in the lead of five vehicles trying to cross the river, swollen by rain, when his vehicle became stranded. As water poured into the cab, everyone climbed on to the roof but Mr Brons tied a rope around himself to try to make it to shore, but he was pulled under the water.
The Press reported that his companions, from Canterbury 4x4 Events, cut the rope when he failed to resurface, in the hope of giving him a chance of being washed to shore.