A rare natural phenomenon has been spotted on a river during the current cold snap. Foam generated by the falls at Norby Weir, near Thirsk, has frozen to form circular discs known as "ice pancakes".
A rare natural phenomenon has been spotted on a river during the current cold snap. Foam generated by the falls at Norby Weir, near Thirsk, has frozen to form circular discs known as "ice pancakes".
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