This is a type of crustaceans usually live on the coastline with thin shells, soft texture, fatty, sweet taste. Oysters have high nutritional value with a wide range of protein, glucide, fat, zinc, calcium, magnesium

In Ha Long, oysters are a must-try dish. Daily collected fresh oysters are then cleaned, grilled over charcoal, and seasoned with salt, pepper, lemon and grilled onions. They are sometimes eaten raw with a lemon slice. According to the locals, the oysters that live in the muck beside the sea are said to be the most delicious one in the area.