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 Home Reef Adds On Weather Blog Home Reef Adds On February 17, 2026 Surveying Popes Creek Weather Blog Surveying Popes Creek February 16, 2026 Stonebreen’s Beating Heart Weather Blog Stonebreen’s Beating Heart February 13, 2026