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Blue Lake
lake

Blue Lake

Blue Lake is a karst lake situated near Imotski in southern Croatia. Similar to the nearby Red Lake, it resides within a deep sinkhole likely formed by the collapse of a vast cave system. The total depth from the upper rim measures approximately 220 metres (720 ft), with water depths fluctuating seasonally. It's a popular spot for hiking and sightseeing.

Photo: Wikimedia Commons

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