Oceans represent Earth’s last great unexplored wilderness.

Despite making up more than 70% of the Earth's surface, there is still much about the oceans that we do not know.

Exploring and studying them is critical to protect these valuable resources for future generations. Uncover why we need to protect the oceans, find out how to get involved and dive into cutting-edge research about life underwater.

Latest news

Thank the ocean with every breath you take

28 November 2017

Marine biologist Dr Sylvia Earle encouraged the public to learn about the Earth's life support system.

Museum to stop selling plastic bottles

28 November 2017

Staff announce that single-use plastic water bottles will be replaced with fountains.

Assessing future deep-sea mining

10 October 2017

Scientists are mapping biodiversity on the seafloor before mining changes ecosystems.

Marine science

The Museum's scientists study marine specimens from around the globe, from tiny fossils to vast whale skeletons.

This scientific research informs debates on issues including climate change, ocean acidification and plastics in the sea.

Lates: Blue Planet II

Were you inspired by the BBC's Blue Planet II series? Come and meet the team that made it all possible at this special evening event.

26 January, free


Life underwater

Explore stories of animals and plants that spend their lives beneath the waves.

A sea dragon brought to life

Encounter Rhomaleosaurus, a prehistoric sea dragon, as it comes back to life before your eyes in virtual reality.

Find yourself virtually transported inside the Museum and watch this marine reptile roam the galleries.



Uncover the secrets of the largest animals in the ocean.

Explore the blue whale

Relive the history of the Museum's 25-metre blue whale skeleton in the interactive online experience.

Take part

Find out how you can be involved in the Museum's citizen science, or see more of our marine specimens.


Whales: Beneath the surface

Explore the extraordinary lives of whales in a major family exhibition.

Big Seaweed Search

Explore the UK coast and submit your seaweed sightings to help research.

Spirit Collection Tour

Meet Archie, our 8.62-metre-long giant squid, in this behind-the-scenes tour.