guided tour of an underground built by the organization TODT to set up design offices for the German Engineer Stab Pi 27 (constructions wall of the Atlantic and sits V1, V2, V3V) isite guided by group of 10 to 15 people (no reservation, several guides will be available) duration of the visit about 45 min/ 1h00 Take a jacket or warm clothing, temperature and 12°C Informations Admission € 2 adults, free for children (under 12 years)

Address
Rue de l'église Hallines, Pas-de-Calais, Hauts-de-France, France