The Construction Methods of the Stone Weirs: E. Knotting - The stone weirs have existed for more than one hundred years. Instead of utilizing various convenient tools nowadays, it took lots of time and manpower to move the stones for building in the past. At the early stages, people used tools as rope and carrying pole only. At first, make a resizable square-shaped hollow from two ropes by intersecting and tying into four knots. Second, place the polyhedral basalt stone on the hollow and make it be fixed between the ropes. Afterward, the repairmen would hold the knots from both sides, then deliver the stone together within a short distance, or be assistive for lifting the stone up off the water, and throw it on the dike. In addition, we can utilize one or two carrying poles with the knots to lift the stone up on people’s shoulders, in order to disperse the heaviness. - Context compiled by isle.travel, 2017.