From Paris, Lille, Calais: exit "Reims center" then exit Cormontreuil at the 1st roundabout turn left (3rd exit "TAISSY"), at the 2nd roundabout straight ahead (3rd exit) then turn right twice. Troyes / Metz / Nancy: Take the A34 Cormontreuil direction. After the toll take the 2nd exit "Cormontreuil", from Charleville Mezières: Follow the A34 direction then Cormontreuil.