Summer at the ‘heaven lake’ of the Changbai Mountains
CGTN
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The Changbai Mountains lie on the border between China and DPRK. Baitou peak is the tallest peak of Changbai Mountains and in northeastern China at an elevation of 2691 meters.

Tianchi,  Chinese for "heaven lake", is the deepest lake in China. It's a crater lake atop the volcanic Changbai Mountains. The maximum depth of the lake can reach 384 meters, with an average depth of 213 meters.

Tianchi from the southern slope of the mountain. /CGTN Photo

Tianchi from the southern slope of the mountain. /CGTN Photo

Tianchi from the southern slope of the mountain. /CGTN Photo

Tianchi from the southern slope of the mountain. /CGTN Photo

The lake can be observed from the north, west, and south on the Chinese side, while the eastern slope lies in DPRK. 

Tianchi from the northern slope of the mountain. /CGTN Photo

Tianchi from the northern slope of the mountain. /CGTN Photo

Tianchi from the northern slope of the mountain. /CGTN Photo

Tianchi from the northern slope of the mountain. /CGTN Photo

Last time the Changbai volcano erupted was in 1702. A monitoring station of the volcano was built in 2006 to closely monitor the volcanic activity of Changbai Mountains. 

(Images and video provided by CGTN Nature's filming crew in Changbai Mountains.)

(If you want to contribute and have specific expertise, please contact us at nature@cgtn.com)