Several hundred miles from where the animals are normal spotted, locals were surprised to spot the beast on the shoreline on Sunday.
Discovered by Mark Warren, warden at North Ronaldsay Bird Observatory, walruses are normally found in Arctic waters. This is really far south of its range. How it got there remains a mystery.
Sunday’s story became one of the most read on the BBC news website, and the walrus even found itself with its own social media account.
It has since been seen heading back into the sea.
Wildlife experts said it was extremely unusual for a walrus to be spotted so far south of the North Pole and Arctic Ocean.
The walrus appeared to be in good health.
The Daily Record notes: It’s the first walrus sighting in Orkney since August 1986, when one of the Arctic animals was spotted on Eynhallow.
The young male was perhaps looking for a mate and got a bit off course.
Visit the Observatory blog for more lovely pictures.
See video here.