What does it sound like at the bottom of the ocean? How does it feel to swim with a humpback whale and her calf? What does an octopus' tentacle feel like when it wraps itself around you? Come and find out. This is Oceans: Life Under Water.

Wildlife filmmaker, zoologist and broadcaster Hannah Stitfall wants to take you to the world beneath the waves. She'll be meeting freedivers, submarine pilots, whale experts, ship captains, marine biologists, and more, hearing the most mind-boggling stories about the oceans and the astonishing creatures that call them home. The hypnotic sound design and immersive storytelling will take you right there - from the Lost City to Galapagos, from the Mariana Trench to the Antarctic.

Brought to you by Crowd Network and Greenpeace UK, which helps us tell these stories beautifully and responsibly.

Producer: Anna Staufenberg.
Executive producer: Steve Jones.
Mixing and sound design: Anna Staufenberg.
Archive courtesy of Greenpeace.

In this final episode, we&#039;re looking to the future. The Oceans Treaty which was finally passed last year after decades of negotiations was momentous - but what actually is it? And will it do anything? Senior Policy Advisor Lisa Speer was at the UN HQ in New York when the announcement was made, and joins Hannah to break down what it means, why it&#039;s exciting - and what obstacles still stand in the way. 
 
Hannah speaks with Hawaiian community leader Uncle Sol about his island&#039;s relationship to the ocean and what the Oceans Treaty means to him; and she also meets Marion Atieno Osieyo, creator and host of the award-winning Black Earth Podcast, for an inspiring chat about the future of conservation. 
 
You can watch the moment the Oceans Treaty announcement was made at the UN Headquarters here: https://www.youtube.com/watch?v=vEEhCjMgFPQ 
 
The podcast is over for now, but we&#039;re continuing the conversation on our social media channels. Come and join us @oceanspod on Instagram, TikTok and Twitter. And if this series has inspired you and you want to help in some way, go to https://act.gp/life-underwater.

Oceans: Life Under Water

The Data