Imagine a natural island that is mostly mountainous and, for the rest of its landscapes, alternates between vast tundra plains and areas of great lakes, lagoons and cliffs. Welcome to Wrangel, the most important hotspot of Arctic biodiversity. Situated between the East Siberian Sea and the Chukchi Sea, the island was named after the Russian explorer Ferdinand von Wrangel. Listed as a UNESCO World Heritage Site, the island is a rare, precious and very ancient ecosystem with unique vegetation, as well as an exceptional fauna: it is home to the majestic polar bear and the vast majority of the Russian Arctic’s walrus population. The island also holds traces of the last mammoths and is home to several endemic species.