A 21ft dead whale has been washed up by the storm on Marazion beach.
Dog walker, Kristina Sapey was at Leys Lane beach this afternoon and took a photograph of the creature.
Commenting on Facebook, she said: "I think it's covered in mud. I didn't get too close as I didn't want the dog to go near it."
The coastguard are advising people to stay away from the badly decomposed animal which they said had died long before it was washed ashore.
A spokesman from Falmouth Coastguard said: "We would rather people didn't go along to see it. We don't want people going near it."
A coastguard team from Penzance went down to take details of the whale after they were alerted to this stranding around 9am this morning.
The spokesman said details would be passed on to the Natural History Museum and Cornwall Council.