Residents living around Iceland's Lake Þingvallavatn were baffled this week when a strange pattern appeared on the ice-covered lake.
The enormous 'line' appears to stretch across the lake and looks like something created by either an alien practicing for crop circle season or perhaps an Icelander taking a foolish stroll after 'a few too many.'
Shared on Facebook by the Icelandic National Park that is home to the lake, officials marveled that locals had never seen such a pattern before and called it unexplained.
Fortunately, the mystery melted rather quickly as weather watchers were easily able to explain the oddity.
According to meteorologists, the phenomenon is a natural process known as 'finger rafting,' where two different bodies of ice converge in a way that is akin to interlocking fingers.
Source: Ice News