A11 motorway exit 3.1
Take the D154 towards Illiers-Combray at the 1st roundabout (154).
Then 2nd roundabout "Chartres" on the D921, drive about 4.5 km then turn left towards Magny (D108).
In Magny, turn left then immediately right towards Marcheville.
Arrived at Marcheville turn right, pass two speed bumps and the entrance is in front of you.