📍Bull Rock is a dramatic, uninhabited island located about 9 kilometres (5.6 miles) off the coast of County Cork near Dursey Island on the Beara Peninsula, Ireland
In Irish mythology, the tunnel running straight through the center of the rock was known as Teach Duinn (the House of Donn), named after Donn, the Celtic god of the dead.The Milesians believed the souls of the departed traveled westward through this tunnel toward the setting sun.