As stated on the Commonwealth War Graves Commission website:
Muneville-sur-Mer is a village and commune about 15 kilometres north of Granville, a town on the west coast of the Cherbourg Peninsula. The village is on the N.171 road to Coutances. There are 3 Commonwealth burials of the 1939-1945 war here, 11 metres north-west of the north-western corner of the church.
Link to the Commonwealth War Graves Commission page dedicated to Muneville-sur-Mer Cemetery: