In reply to tjekel:
We’ve tried 5 different circuits over our past 2 visits.
Our favourite was feuilladiere, it has a tunnel, 3 circuits for different ages from toddlers to 12 year olds.
canche was good but very polished and incredibly busy on the Sunday we were there.
rocher canon started ok, but some of the boulders are quite high, and then we hit lost in the chaos.
Elephant is ok but again not that easy to follow the circuit.
Apremont Bizon is a lovely open location for the kids to play, but the problems are higher and harder than on the other circuits above.