Ice skaters recorded this frozen lake in Norway emitting surreal but beautiful sounds. It's often a result of changing temperatures shifting the ice.
원문출처 : https://www.cnn.com/videos/travel-play/2019/01/24/frozen-lake-singing-travel-orig-newssource.cnn
원문출처 : https://www.cnn.com/videos/travel-play/2019/01/24/frozen-lake-singing-travel-orig-newssource.cnn