Rocher de Corne-Biche
Big outspread area. But a very good one. From the parking you can reach the old black circuit in about 5-7 minutes walk and the first hill top. The main area is though around a 15-20 minutes walk away.
In Corne-Biche you can find plenty to do. There are basically 5 circuits available.
East side
Blue D+ 0-33
Orange AD 1-48
West side
Orange1 AD 1-34 (west side)
Yellow PD- 1-35 (west side)
Far west, close to pyramidale
Old black circuit AD+ (first hill)
Besides circuit problems you have both potential of new lines and a bunch of already opened ones. There are no lack of boulders in this area.
Most problems are on the south facing hill side and are of the hard sandstone, meaning fast drying, good for cold days. A few problems are though on the north side, which offers shade but also takes some time to dry up.
The area is not really stroller friendly but very children friendly.
You find about zero network coverage in the low part of the area but have a pretty good signal high up on the hills. Still recommended to download the entire guide for offline use.