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St Petersburg ice walls thrill Russians

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Ice wall in ZelenogorskImage source, Terijoki.spb.ru

Russians are marvelling at rare ice walls - in places 5m (16ft) high - towering on the shores of the Gulf of Finland near St Petersburg.

They were created by storms lashing the region in recent days.

Such phenomena are more characteristic of Russia's Arctic far east.

The walls are formed when a storm exerts sideways pressure on thick ice covering a sea, river or lake. The ice is bad news for seals, though, as it can cut them off from the sea.

A conservation group - - is urging Russians to alert it to any stranded seals found in the region. Some have been spotted from helicopters.

Image source, Balticseal.org
Image caption,

This baby weighs just 13.5kg (30 pounds) but needs to reach 40kg to survive independently

One baby grey seal, just a few days old, was rescued last week and is doing well now, the group reports, , the Russian version of Facebook.

The seal, swaddled in blankets, is fed five times a day with a pipette. It became stranded in Gakkovo, a coastal village near Estonia.

Image source, balticseal.org
Image caption,

The pictures show how vulnerable the baby still is

The most dramatic ice wall pictures so far have come from Zelenogorsk, on the northern shore of the Gulf of Finland, just outside St Petersburg.

Alexander Bravo posted images of the wall . He calls it "the Zelenogorsk Alps".

Image source, Terijoki.spb.ru
Image source, Terijoki.spb.ru
Image source, Terijoki.spb.ru
Image source, Terijoki.spb.ru
Image source, Terijoki.spb.ru
Image source, AFP
Image caption,

The ice did not deter this surfer last month at Lipovo, near St Petersburg

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