The crew of the Camara throw an Ogri into the Irish Sea. (COMIC: Seaside Rendezvous)
The Irish Sea was a body of water that separated Ireland from Great Britain.
In 1826, the Camara returned to England through the Irish Sea. Before reaching land, the crew dumped an Ogri off of the ship. The Ogri became stuck at the bottom of the sea and was gradually eroded by the water. It eventually became a pile of sand. In 1991, it murdered several people at beaches along the English coast until it was defeated in Blackpool by the Seventh Doctor. (COMIC: Seaside Rendezvous)