If Jaflong provides rocks, then the rivers in the nearby areas provide the next best thing — cement. The sand comes down from India and is considered of the finest quality. It is very fine in size and seeped in my canvas shoes through the canvas.
The process of sand fishing involves getting pails of sand from the river bottom, hauling them up into the boat, letting the sand drain a little, and then letting your colleagues push the drying sand into the center of the boat. At the back of the boat is a bilge pump or a guy bailing the boat. The sand is ferried down to waiting trucks and then the trucks move the sand to hand cranked cement makers.