An archive photograph of Dune du Pilat and Forêt des Landes. I've read that the local section is known as the Forêt Usagère de La Teste-de-Buch, and the dune is the the tallest in Europe at over 100m. I did manage to get to the top!
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On the left is a pine forest, to the right is a large sand dune rising upwards. The sky above is blue with wispy white clouds.