The riverbed is taking no prisoners.
One bike hit rock, broke sump, and is now being recovered.
Another bike hit rock (another rock, not the same one, there are plenty to go around)
and holed his petrol tank. He is limping to the bivuoac via tar road.
The R1200GSA sunk in the sand almost immediately. To his credit, the rider got going again, but is now on a parallel route.