Introduction to Bianxi Lake: Kaifeng West Lake is located between Kaifeng New District and the old city, starting from Xichengdi Huandi Road in the east, to New District First Street (Affiliated First Street) in the west, from Beihuan Road in the north, to Songcheng Road in the south , 1.2 kilometers at its widest point, 300 meters at its narrowest point, and about 5 kilometers long from north to south.