Tuyet Tinh Coc Hai Phong is located in An Son commune, Thuy Nguyen district, about 28km from Hai Phong city. This place is a favorite destination for many tourists because of its blue sky, white clouds and blue lake. This place was formerly called Co Yem Lake, outstanding with its blue color covering a large space of about 20 hectares. In particular, the intensity of the blue color often changes many times a day, depending on the clouds. The sparkling scenery thought to only exist in movies has left countless visitors impressed and nostalgic. Even though you come here on a short one-day trip to Hai Phong, this majestic and poetic scene will certainly bring you unprecedented impressive and exciting experiences.