Corsica. Burned out
Wildfires sweeping across the Mediterranean coasts are quite common each summer. All of them are man made, what is less usual is new vegetation growing instead of some "carefully designed to fit the environment" buildings. I've found this interesting article on the topic.
In this case we are on the thrown out of the window cigarette, I've got to this supposition given the proximity to a road connecting to a beautiful beach. Generally pyromaniacs tend to operate in hard to reach places.