What's the budget for going to Qinghai Lake?

Depart from Xining and surround the lake for two days, and return to Xining the next afternoon. On the first day, Xining, Huangyuan Tanger Ancient City, Sun Moon Mountain, Daotang River, Qinghai Lake 15 1 scenic spot, Jiangxi ditch and Heima River. Lives in the Black Horse River. The next day, I chartered a car to 900 yuan in Heima River, Bird Island, Gangcha, Sand Island, Treasure Beach, atomic city, Xihai Town and Xining.