The sand island is located in the northeast of Qinghai Lake, which extends into a huge sand dune area in Qinghai Lake. This sand dune is large in size, and you can see a desert scenery in the past. At the end of the desert is the blue Qinghai Lake, with a unique and magnificent landscape. I went in June 17, and it took me a lot of effort to climb the highest point of the dunes, overlooking Qinghai Lake, it was so beautiful! I went to the sand island in September last year and closed it. I don't know if it is open now.