The Caves of Naours
Initially quarries that were used to shelter local inhabitants, they have lasted through time and now reveal their history to visitors.
During the Great War, the underground cave network was used as an organised tour destination : a means of distraction for soldiers on leave or convalescent behind the front lines.
The Underground City of Naours is home to around 3 000 examples of graffti (fnds to date) drawn by First World War soldiers : more than 700 are believed to be by Australian soldiers. It is the largest concentration of wall inscriptions on the Western Front.