Rocher des Souris
Many have seen some of the classics of this area, because one of the classic boulders is located just at the intersection of the main path to 95.2 and the red 25 bosses, this one is the "Yoga" boulder.
But this area doesn't stop there, there are some real gems around in the Forêt behind this one, also even closer to the parking you have the Brexit boulder with a huge amount of problems, mostly variations, but some worth the visit. Most people doesn't know this area features almost 100 problems.
Some really good problems to try could be:
Velociraptor 7C
L'Homme Volant 7C
Kric-Crac 7B
Prouesse 7B (Assis 7C+)
Yogi / Yoguignol 7B
Le Brexit 7A+
Extraction Terrestre 7A+ (In many guides shown wrong!)
Haute Trahison 7A/+
Mistoufly 7A
Yoga 7A
Vis-à-Vis 7A
La Souris Verte 7A
Le Référendum 6C+
Travaux Publics 6B+
Mucho Bueno 6B
Le Surplomb Rouge 6A
Clic-Clac 5
Some blocs are very family friendly, but the hillside is not really a stroller friendly area. Some blocs would require some re-brushing, but underneath the new moss you can find some really good lines.
There are though a bunch of rocks without lines in this guide, might have some potential for some lines as well?
The reception in the forest of Fontainebleau is not always good, so downloading the guide offline is recommendable.