Voir sur FrenchStream. A uniquely styled nature doc about the life of the Baltic Sea, where National Geographic photographer Mattias A. Klum follows the cycle of seasons around one of the most beautiful inland seas in the world today. By capturing the hidden life and beauty of the amazing species that live in the Baltic Sea, Klum delivers a timely reminder of our role in the survival of these fragile ecosystems, as the Baltic Sea comes under increasing threat from human activity.