Marine experts were called to Heacham yesterday after two live octopuses were found on the beach.
The creatures are currently being cared for by staff at the Hunstanton Sea Life Sanctuary, who say they don’t know how they came to be out of the water.
But Nigel Croasdale, the centre’s general manager, said: “They’re looking quite sprightly and quite healthy this morning.
“We will consult with our veterinary support team to see what they would advise at this stage.
“Because they’ve come from the wild, we need to keep them in quarantine for 28 days before we can put them on public display.”
One of the octopuses was found by caravan owner Sue Bailey, from Irthlingborough, Northamptonshire, after she had closed her property for the winter.
She said: “I’ve found all sorts down there in the past and even rang the Sanctuary six months ago about a seal pup I came across, but this was the first ever octopus.
“I had come across them in rock pools on holiday in Greece before and even had one wrap itself round my leg, so I wasn’t in the least frightened by it.”
As staff headed to the scene, they were then told of the second octopus, which was found on a different stretch of beach.
Both were found alive and were taken back to the sanctuary, where they are currently under observation.
Kieran Copeland, the sanctuary’s displays supervisor, said: “It’s very rare to come across a single stranded octopus, let alone two.
“We can only speculate on why they were out of the water on the beach. It really is a mystery.”
Officials say that, like all octopuses, the rescued creatures have three hearts, blue blood and brain which is shaped like a doughnut and positioned around the lower head, just above the beak-like mouth.
Mr Copeland said: “They have a short life-span of around three years. It may be that these are elderly octopuses which have crawled ashore to die, but we hope not.
“They are amazing creatures and we’d love to get them fit and healthy and on public display so our visitors can admire them and learn about them.”
Although their genders are as yet unknown, the sanctuary hopes to be able to name them Sue and Sunny, after Mrs Bailey and her husband.