Russia's Hidden Paradises - Nature Documentary

The exclave of the Curonian Spit forms the westernmost tip of Russia with the oldest ornithological research station in the world. In the far east on Kamchatka, Lake Kuril offers a paradise for the world's largest brown bears. High in the north on Yamal live the reindeer herds of the Nenets. Climate change and gas production are rapidly changing their icy world.