From northerly ports - Calais, Dieppe, Boulogne - make for Orleans and at Vierzen pick up Autoroute 20, which is free to Brive. Continue to Cahors and take the South exit. As you come to Cahors, go right round the first big roundabout to the exit marked AGEN, VILLENEUVE. LAUZERTE, MONCUQ - D653. Keep on the Agen road and a few miles after Moncuq one leaves the Lot and enters Tarn et Garonne. You are now very near .....