The famous white sand national park, which is more than 300 square miles, is a vast white sand, and it looks like snow from a distance. In fact, the white sand here is a gypsum crystal, and the effects of moisture and drought eventually turn the gypsum into fine sand, constantly changing under the influence of the wind, forming today's size dunes. The most amazing thing is that even if the day is more than 40 degrees of high temperature, the white sand is always cool, so, in addition to winter, other seasons here is a must-go place for tourists to travel here, locals often go, a car for $5, not charged according to the head.