Coming from Cahors take the D6 towards Château de Haute Serre.
300 m before the castle of Haute Serre entered left in the place called "La Petite Metairie".
Then take a dirt road right at left. This is the "Way of Martel".
Drive to the end of the path of Martel No. 335 ... You will come to a house cladding wood (the only). You are there!