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The network of caves and tunnels beneath Arras are a clear demonstration of the ingenuity and resourcefulness of the NZ tunnellers. Writings in Te Reo Māori, sketches of girlfriends, cartoons and directions are clearly visible 100 years after they were made.

But the chalk is deteriorating and the city above-ground is developing, so these tunnels will not remain for ever. Some areas are already inaccessible – the time to scan and map this underground city is now or never.

By capturing, recording, and modelling the tunnels of Arras excavated by the New Zealand Engineers Tunneling Company in support of the decisive Battle of Arras, we will preserve the physical and cultural heritage of a site of military significance associated with World War One.