Where there are many shells, it is generally a place with low tide and shallow sea water. Generally, there are small holes on the shallow surface of sandy soil. Tools can be used, such as five-tooth rake, small building shovel, small shovel, small shovel and so on. In addition, usually the larger shells are mostly at 20-50 meters of the full tide line. When digging, turn the sand in turn according to the depth of 5- 15 cm. When you feel the tool touching the shell, just look carefully to see if it is the shell. After digging, put the clam in a small bucket filled with water.
You can also dig shells by hand. Generally speaking, Meretrix meretrix is easier to dig under the sand of 5- 15 cm.