UPDATE: Camping on the island of Papa Westray – next to St Tredwells – a nunnery and pilgrimage site dating back to the 8th Century.
Tredwell (Triduana) was a nun living in the monastery there (you can see the small round island sticking into the loch). A King told her she had beautiful eyes, or so the story goes, and she plucked them out and sent them to him on a stick. Over the centuries, pilgrims with eye problems travelled here to bathe in the waters, but not after walking silently around this loch a few times. And often on their knees.