Photo taken on May 2, 2019 shows the Blue Lake near Imotski, Croatia. Lying in a deep sinkhole, the karst lake in southern Croatia has changed into a rare blue color this week because of heavy rains and sudden flow of underground water. (Xinhua/Ivo Cagalj)
In pics: Blue Lake near Imotski, Croatia
Source: Xinhua| 2019-05-03 07:19:39|Editor: xuxin