In reply to Enty:
At 8, she should be able to give any of the kiddy circuits a good go. Some are taller/more exposed/need more reach than others, but that's been more of an issue when they're 3 or 4. She might manage some of the yellow problems, too.
Can't remember many of the names off the top of my head, but the one near the Elephant is good (starts at the bottom of the boardwalk and heads round to the left, past the Elephant itself) though marking is a bit faint. The one at Canche aux Merciers is good too.
Out on the NW edge of the climbing area there's (I think) Rocher du Duc, which has a good white at each of the car parks.