Take a deep breath. Blue Planet II, the seven part landmark series narrated by Sir David Attenborough, starts Sunday 29th October on BBC One.
See all episodes from Blue Planet II
Visit OpenLearn, the OU’s home of free learning, to learn more about the oceans
Re-live some highlights of the series
Read articles and watch clips showing how we created the series
Get ideas on how you can help sea life.
Join us for a deeper look into each episode of Blue Planet II