A Norfolk photographer has captured the moment she found a rare example of a natural phenomenon in her own back garden.
Tracey Robinson, from Gaywood, King's Lynn, took this photo of an ice spike she found in a teacup in her back garden on Sunday morning.
Ice spikes like this forms when a weakness appears in ice skin, and liquid water gets squeezed upwards through a hole.
But they are rare due to the exact mixture of air conditions needed to form – the temperature and wind speeds have to be perfect.
Mrs Robinson, a photographer and author, said she found the spike in one of the teacups which she leaves around her garden as drinking pools for birds.
She said: "It's a one in a million. I called my husband Eric and he said he'd never seen anything like it in his 70 years.
"If there was something dripping above it I would get it, but there's nothing. It was quite thick, and looked like a thermometer."
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