Cha Muc, also known as squid sausage, is a unique and delicious dish that is a must-try in Halong Bay. It is made from minced squid mixed with various spices and then shaped into small sausages. The sausages are then grilled or deep-fried until they are golden brown and crispy. Cha Muc is often served with a side of sweet and sour dipping sauce. The combination of the tender squid and the crispy exterior creates a delightful contrast of textures. It is a popular street food in Halong Bay and is loved by locals and tourists alike.