Graham Elliott, area manager for the Royal Society for the Protection of Birds, which also works to safeguard other forms of wildlife, said the seal was spotted at the Fen Drayton Lakes reserve, near St. Ives, England, about 50 miles from the coast, The Scotsman reported Wednesday.
"It would be the first time this has happened, to my knowledge, that one has made its way into the lake. The floods normally come from ground water rather than the river, and so it must have worked its way up in a ditch or something like that," Elliott said. "It would be extremely unusual and it would become an attraction to visitors"
Footage of the seal has appeared on YouTube.