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Twenty years ago, BBC's Natural History Unit (NHU) set out to make a series on the world's oceans with the groundbreaking original Blue Planet. Now, with new understandings of marine science and advances in underwater filmmaking, the NHU returns to the underwater depths. During more than four years of filming, the Blue Planet II crew mounted 125 expeditions, visited 39 countries, spent over 6,000 hours diving, and filmed on every continent and across every ocean.
Blue Planet II travels through an exquisitely beautiful world - from remote island shores to the depths of our oceans - bringing viewers face to face with unexpected new landscapes. The series also witnesses the great changes and threats to the health of our ocean. Never before has there been a more crucial time to explore our remotest seas and examine what the future might hold for our blue planet.