Where: Gorge Du Tarn, France is a bit remote. We drove from Germany through Switzerland and then on south through France where we rented a gite. You can find more about the area and the gite in this post .
When: We went in the off season, October, when it was still great for climbing, and their were no crowds at all anywhere. The downside to this was that many resturants/shops in the area were not open. I'd say spring through fall would be great here. So much shade, and you are up at a pretty high elevation for southern France, so in summer, it still isn't too hot.
Accommodations: I would recommend a gite personally over camping. The gite we stayed in was so cheap and perfect for a family with kids. Separate bedrooms, kitchen, TV, etc.
Food: As always, we stock up on groceries and prepare a lot of our meals on trips like these with our kids. We drove to to Millau our first day and stocked up at a HUGE grocery store on the edge of town. We also hit up the wonderful farmer's market in Millau later on in the week for fresh food, soap, and gifts to take home. Make sure you get Pain Chocolat for breakfast in France, the best pastries in the world, amazing wine, fresh bread, and try a few cheeses out as well!
Where to Climb: Honestly, I haven't been in a few years, so I forget the names of all the crags we tried out! However, this link should help you out. I do remember there were quite a few crags you would not want to take kids, however, there were just as many that are easy/safe with kids.
What to see in the Area: The city of Millau and the famous Millau viaduct the tallest bridge in the world. Plus, kayak on the tarn. Most of the tourists in the area are there for the kayaking, so we gave it a try and it was awesome! Plus, if you like Roquefort, you can visit the caves where it is made. Just hiking and driving around the area was entertainment for us.
