Nem Cua Be, also known as crab spring rolls, is a popular dish in Halong Bay. It is made from a mixture of minced crab meat, pork, mushrooms, and various spices, which is then wrapped in rice paper and deep-fried until crispy. The spring rolls are served with a side of fresh herbs and a dipping sauce. The combination of the crispy exterior and the flavorful filling makes Nem Cua Be a delicious and satisfying dish. It is often enjoyed as an appetizer or as a main course.