In the far south of Japan, there is a chain of islands stretching towards the tropics?—a place where all life is influenced by the power of the sea, and where volcanoes and typhoons are forces to be reckoned with. The journey begins at an island at the top of the chain and travels south, revealing unexpected stories of isolation, unique wildlife, and unsolved mysteries.

Originally released by BBC, 2015. Streaming video file encoded with permission for digital streaming by Infobase on May 22, 2019.

Yakushima (4:30); --Living near Sakurajima (5:41); -- Kuroshio Current (5:12); -- Kudaka Island (5:12); -- Ogimi Longevity (2:12); -- Mozuku Aquaculture (3:45); -- Iriomote Island (5:20); -- Tarama Island (4:18); -- Tropical Storms (6:54); -- Yonaguni Underwater Pyramid (4:08); -- Credits: Wild Japan: Southwest Islands (0:30); .