In the Loire Valley of France, limestone caves are all the rage for escaping this summer’s intense heat. By Erica Rex Ms. Rex is a science writer. VOUVRAY, France — The early-morning ...

We went to south-west France for a blues festival and were rewarded ... The valley is dominated by towering limestone cliffs and there’s a towpath cut into the rock face. The path has artworks ...

Located inside the limestone cave ... older than Europe’s famed cave art such as Lascaux in France, and, while younger than some geometric abstract art found in South Africa, it’s the oldest ...