A must-see park for Yunnan travelers in Heihe

In this episode, Patana and his partner Wen visited Heihe-Tengchong China Population Geography Demarcation Line Park in Heilongjiang province. It is really a surprise that Yunnan elements can be find in northeast tip of China. Let's see this famous "line" known to all!

Reporting by Zi Jianfei and Shu Wen; trans-editing by Wang Yunya