Leulinghen-Bernes is situated some 10 miles (16 km) northeast of Boulogne, at the junction of the D191 and D231 roads. TheA16 autoroute cuts through the middle of the commune's territory.
The church of St.Leger, dating from the fourteenth century.
At the end of the 14th century, The French-English border crossed the center of the church. There were two entrance doors: the northern one for the subject of the English king, and the south one for the subjects of the French king.