When it is too hot at the beaches or in the cities, retreat to the mountainside for some cool, crisp air. Tour guide Chen Hongpeng tells us about Changbai Mountain in northeast China's Jilin Province in summertime. From grasslands, and meadows to a dormant volcano and a famously evasive view of a mountaintop lake, the mountain has charmed visitors in the warmer months. Catch China Popcast for more on cool travel spots.