Thousands of rare 'ice eggs' found on beach in Finland

Couple stumble upon unusual occurrence that is result of very particular weather conditions

A rare collection of "ice eggs" has been spotted in Finland, a phenomenon experts say only occurs in highly particular conditions.

Risto Mattila, who photographed the eggs, said he and his wife were walking along Marjaniemi beach on Hailuoto island on Sunday when they came across the icy balls covering a 30-metre (98ft) expanse of shoreline.