Occupying an enormous 2339 sq km and one of China's largest freshwater lakes, Hūlún Lake, called Dalai Nuur (Ocean Lake) in Mongolian, unexpectedly pops out of the grasslands like a colossal inland sea. You can hire a horse (¥100 per 30 minutes) or a quad bike (¥100 per 20 minutes), take a boat ride (¥10 per 20 minutes) or simply stroll along the rocky lakeshore, taking in its magnificence. The lake is 47km southeast of Mǎnzhōulǐ.
The only way to get to the lake is by hiring a taxi. Expect to pay about ¥200 return.