Weather Blog A Morphing Monument of Sand France’s La Grande Dune du Pilat, the tallest sand dune in Europe, was 4,000 years in the making. Read More… About Author OTW Observer See author's posts Post navigation Previous Gleaming Waters in the Sahel Next Met Police warn over swimming dangers as temperatures expected to hit 22C Related Stories A School of Mud Volcano Islands in Azerbaijan Weather Blog A School of Mud Volcano Islands in Azerbaijan April 21, 2026 Thailand’s Krabi Coast Weather Blog Thailand’s Krabi Coast April 20, 2026 Spring Rains Saturate Michigan Weather Blog Spring Rains Saturate Michigan April 17, 2026