The Heaven Lake in Wenxian county, Longnan, Northwest China's Gansu province [Photo provided to chinadaily.com.cn]

Located in Wenxian county, Longnan, Northwest China's Gansu province, Heaven Lake is a wonderful summer resort.

In May, the vodka-clear water and the sky are of one hue. Sometimes, the tranquil surface is like a mirror, or sometimes the sparkling waters ripple like the sound of wind.

Its fairyland landscape of blue sky, cotton-puff clouds, crystal-clear waters is spectacular. Its mountains are covered in lush greenery proud of its natural beauty.