Seems a bit lonely ! All the Audax I've done in France I've ended up riding in a group, the control points have either been bakeries or cafés where you get your card stamped. Last one was in Chartres 2 weeks ago, it was very friendly.
I rode that Audax (Holt) by my self as it was not a calendar (group) event. The Newport and Chirk videos I rode are both Group events Thanks for watching 🙂