The special terrain of sand river and sand waterfall is one of Taiwan's precious wind erosion and wind accumulation terrains due to the joint action of rivers and wind forces. When the summer rainy season comes, the rain will wash some sand and stone from land to the coast and form a sand river. In winter, the northeast monsoon blows sandstone to the top of the cliff and creates a "sand waterfall". However, this spectacle has been blocked by the opening of the Goose Jia Highway and has gradually moved towards extinction. Address: Midpoint of Pingjia Highway, Hengchun Town, Pingtung County