Getting hung up on sandbars and silt deposits can be annoying.
Staying on the ""outside"" edge of a bend will help a paddler
maintain momentum thru the twists and turns on the river.
Helicoidal Flow : a corkscrew movement in a meander
This is what moves material from the Outside of a bend
and deposits it on the Inside of the next bend.
Next time out - pay attention to the flow.