A whale which “shouldn’t be anywhere near our coast” has been spotted during a wildlife cruise.

A Facebook post from the Mevagissey to Fowey Ferry said people on a boat off the Cornish coast saw a Sowerby’s beaked whale.

Sowerby’s beaked whales, which can grow up to 18ft (5.5m) in length, are predominately found in the eastern area of the North Atlantic and are “seldom seen at sea” as they dive down deep, the Whale and Dolphin Conservation charity said.