This is a wedge gallery grave of Neolithic or Early Bronze Age (4,000 BC). It was thought that it may be a place of ritual and a burial ground. 

The tomb is also known as Diarmuid and Gráinne’s bed, a reference to a young couple, who, mythology tells us slept at these sites on their journey around Ireland, trying to escape from Fionn MacCool and the Fianna, who wanted to win the heart of beautiful Gráinne, who would not marry him.

Location

GPS: 53.087294, -9.581077