Driving from Paris Porte d'Orléans takes roughly 30 minutes by car (28km), but beware of traffic jams.
Coordinates are 48°42'26.7"N 2°08'39.6"E
SPEC is registered in Google Maps. Use this interface to find us.
When entering CEA-Orme des Merisiers, drive to the end of the lane, SPEC is on the right hand side.