Three-knot is a crab-like species, living mainly in mangrove forests. This species of sea urchin has a small size, lots of bricks, firm meat without being stuck back, claws.
There are many specialties in Vietnamese cuisine that are made from three aspects such as: roasted tamarind, salt roasted, mango salad with papaya, boiled in batches, etc. Three-knot is small but meaty. very delicious and sweet promises to bring visitors a hearty meal in Vietnamese cuisine