Arrival on foot
From Châtillon Montrouge metro station:
In the metro station, turn right in front of the newspaper stand. You come out onto Rue de l’Avenir, turn right.
You come to a crossroads: Rue Paul Vaillant Couturier is opposite you to the right of the “Le Mandarin de Châtillon” restaurant.
The Hôtel Erasmus is 150 metres away, at number 28 of this street, on the right hand side.