It was a very interesting place to visit, and the children were both old enough to get something out of it. We started off in the courtyard, looking at a model of how the chateau used to look, and also at some of the old seige weapons. Then we climbed up a spiral staircase and around the top of the walls. The view was incredible. From there, we went into the keep. Sophie was very impressed with the room set up as the main living area, with a noble lady (princess?) and other figures in it. She wasn't so keen on the guards' room upstairs, with its suits of armour ("Sophie didn't want to see the men", has been the most recurrent quote since going to the chateau), so having walked up from there to the roof, I had to carry her back down with her eyes shut.
She enjoyed getting back into the courtyard, where we saw a rabbit in the old keep. From the courtyard, we could also get into the lower levels of the keep, going right down into the very cool food storage area.
Once we'd finished exploring the chateau, it was time for lunch, so we spread out a picnic in the chateau grounds, then played around in the grass for a while before heading back home.