Coming from Paris by the A11 motorway you come out on Chartres.
Take the ring road (N123) towards Dreux (N154).
Exit towards Châteauneuf-en-Thymerais (D324).
Continue straight for about 15 km to VERIGNY then turn right onto the D148.
Cross La Croix, then Luat and you will arrive at Gonville.
This is the first farm on your right.
Here you are!