Epha Height

Ruslan Shamukov/TASS

Closer to the end of the Russian section of the Curonian Spit there towers the 62-metre (203-foot) Orekhovaya (or Petsh) Dune, one of the tallest sand dunes in Europe. It is named in honour of the German scientist Wilhelm Franz Epha, who served as a dune inspector on the Curonian Spit for more than 40 years, studying sand migration. The observatories give a breathtaking view of the surrounding sand dunes and forested hills, the expanse of the Baltic Sea and the Curonian Bay, which sometimes freezes over in winter. If you are lucky, you will hear the sand sing: this is the sound of specks of sand when they roll down the dune