Driving from Civitavecchia to Saturnia Route

[saamsquatch]

Hi all,

What is the prettiest route to drive from Civitavecchia towards Terme di Saturnia?

Fastest option:
-SS1 Via Aurelia/E 80

Other options:
- Via Strada Provinciale Campigliola
- Via SP3

I don't know this area of Tuscany and will be spending 4 nights/3 days there with my mother. We are staying at an agriturismo 11 km from the Baths of Saturnia. Any other suggestions on things to see/no frills, good places to eat, etc. would be much appreciated. My mother has some difficulty with large hills, so I am trying to limit strenuous walking.

Grazie mille!

Samantha