Sandbar, known as a tombolo, connecting St Ninian's Isle with the mainland of the Shetland Islands off the north of Scotland.

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A couple of miles beyond Bigton is the largest shell-and-sand tombolo (sand or gravel isthmus) in Britain. Walk across to beautiful, emerald-capped St Ninian’s Isle, where you’ll find the ruins of a 12th-century church where a famous hoard of silver Pictish treasure was found. The treasure is now kept in Edinburgh's Museum of Scotland, with replicas in Lerwick’s Shetland Museum.