Although the parking lot was full when we arrived,...

Although the parking lot was full when we arrived, we were able to see all the workshops and the castle in good conditions.
People who work are always happy to answer questions, it's informative and fun.
The toilets were clean from morning to night which is always appreciated.
On the other hand, I recommend to take your meal, spaces are available to eat. We ate there, the wait was long, the prices high, and it was frankly bad: we ordered fries and had a kind of big potatoes bathed in oil: there were several millimeters of oil at the bottom of the container. Restaurant tickets are not accepted.