Don is a type of mollusk, related to clams but smaller, with a long gut and delicious meat.

Compared to clams, don are smaller and have lighter-colored shells; clam broth has a slightly bitter aftertaste, while don broth is sweeter and more fragrant; don meat is firmer and has a richer flavor than clams. Don live in brackish water and are buried in the sandy bottom of rivers, requiring people to work hard, immersing themselves in the water to search and use nets to catch them.

The job of raking for clams is very hard work. The rake is attached to a strap worn around the waist, and the raker holds the bamboo handle in one hand while using the other hand to support their waist for leverage while moving backward.
People who gather clams have to immerse themselves in water and wade for hours to catch them.