It's about 600 miles from Calais.
Turn off the A7 at junction 19, the Bollene turnoff, follow the
signs for Pont-St-Esprit, take the N86 towards Montélimar
for 2kms then turn left onto the D901 towards St.Martin de l'Ardèche
and Barjac.keep following the signs for Barjac and you will come
to Laval-St-Roman.go slowly or you will miss it!
We are on the far side of the village where the road to Ornac
l'Aven turns off.
You could take the TGV to Avignon and hire a car or there are
flights to Avignon from all 4 London airports.