There are many restaurants at the foot of the Great Wall, including hotels, restaurants and farmhouses, which can meet the needs of people at all levels. The specialties are rainbow trout, stewed fish, paste cakes, corn porridge and stewed pumpkin. "Rainbow trout", "stew fish" and "fish cooking is very particular. You must use raw river water. There is a saying among farmers here:" It is not necessary to mention the beauty of cooking river fish in the original river water ". Seasoning only put green onions, garlic and salt. After boiling, the fish smells fragrant, the fish soup is as white as milk, and the Huang Chengcheng cornmeal cake and millet mung bean porridge make the people in Beijing "forget to return". Don't forget the red and white pork strips in the chestnut mat, as well as the whole fish mat. You should eat the wild vegetables in the ecological valley once and eat them fresh.