The Best Documentaries About Oceans

Oct 29, 2023 | Best Of, Nature

Do you have a passion for ocean life? Whether you’re a marine biologist, an enthusiast of the sea, or someone who just loves learning about new things, there are incredible documentaries out there that dive into the depths of our oceans. Here’s our list of the 10 best documentaries about ocean life – from exploring coral reefs and whale migrations to uncovering the mysteries of deep sea creatures, these films will take you on an unforgettable underwater journey. So get ready to explore and be immersed in some of the most fascinating ocean documentaries ever made!


1. Our Planet : Coastal Seas

Discover the wonders of our planet’s oceans and uncover how climate change is impacting all its inhabitants in this groundbreaking film. Take a journey through some of nature’s most captivating ecosystems and explore the species that inhabit them. Dive into the deep blue sea with sharks, coral reefs, and urchins to witness firsthand the beauty and fragility of these marine habitats. The documentary will take you from the tranquil waters of the Caribbean to the intense depths of the Atlantic and Pacific. Viewers will gain insight into how marine species are threatened by increased ocean temperatures, overfishing, and broader human activities that disrupt their delicate balance. Uncover this remarkable story as we work together to protect these vital ecosystems and secure a future for our planet’s oceans.

2. Incredible Colorful Ocean Life : Marine Life

Immerse yourself in the vibrant and beautiful aquatic environment that captivates and enthralls! DNBD brings you on an exciting journey through the depths of the ocean, showcasing its astounding colors, lifeforms, and wonders. Soar among colorful coral reefs, meet fascinating sea creatures, and relax to calming music captured in mesmerizing 4K ULTRA HD.


3. Mysteries of the Twilight Zone

Deep below the ocean, two very different worlds exist. The midwater zone is a place of migratory routes and bioluminescent light shows populated with pelagic wanderers and planktonic drifters. Separated into distinct zones based on depth, it allows for great diversity in aquatic life. But even further down lie the depths of the deep sea floor, where a kingdom of mud and ooze awaits. Here, in the shadows, sessile creatures cling to any solid outcrop they can find and craft their own kingdoms on seamount crusts. These two realms may be distinct from each other but are ultimately linked together. At chemosynthetic oases, primary production is made possible via chemosynthesis at cold seeps and deep sea hydrothermal vents. This is the engine for life in the deep, allowing it to thrive even in locations not exposed to sunlight. In this episode we explore these mysterious depths of the Twilight Zone, discovering a hidden ecosystem that could tell us stories from long ago if only we’d listen


4. Extraterrestrials of the Seas : An Extraordinary Journey in Our Oceans

The ocean; a source of awe and mystery. It is an ever-changing expanse that covers over 70% of our planet’s surface, containing depths both explored and unexplored. Think about the vastness for a moment – 1.37 billion cubic kilometers of water, swirling with waves as old and powerful as time itself. As we venture into this world of adventure and discovery, it is easy to become enchanted by the mystery that lies beneath. While we have explored up to 5% of the ocean floor, there remains an endless amount more for us to discover. From deep sea creatures to shipwrecks long forgotten, our oceans offer a story like no other.


5. David Attenborough Documentary – Deep Ocean: Lost World Of The Pacific Part 1 & 2

Dive deep into a captivating underwater adventure. Mark Erdmann, an eminent marine biologist and discoverer of the coelacanth in Indonesia, teams up with NHK on this journey to explore the little-known depths of the tropical Pacific Ocean. As they travel to New Guinea’s richly colored coral reef that drops off suddenly at 1,000 meters, the team uses a spherical transparent submarine to capture some of the world’s first moving images of giant squid in their natural habitat.



Our journey into the depths of our majestic and mysterious oceans! Here we explore the wondrous coral reefs, uncover the secrets hidden in its depths, and witness majestic marine wildlife in their natural habitat. From vibrant fish that reside in tropical waters to powerful and intelligent whales that roam the expansive blue ocean – these creatures will take you on an unforgettable journey of discovery. Dive deep and unravel the mysteries of the ocean’s environment, including its geological formations, diverse ecosystems and diverse species. Discover how the ocean can provide an array of resources for people in coastal communities and beyond. Get to know more about human activities that may have negative impacts on ocean life such as pollution, overfishing, climate change, and more.


7. An INCREDIBLE Journey to the Earth’s Prehistoric Oceans

About 541 million years ago, the world was a completely different place. While Pangea was yet to be formed, the continents and oceans were separated by vast expanses. The Iapetus Ocean divided North America and South America from Africa while the Rheic Ocean kept African coast apart from Baltic continent. Further away, Panthalassa and Paleotethys spread over wide areas, creating a gap between North China and Siberia. Over the course of millions of years, the movement of tectonic plates drastically changed the face of Earth. England, Denmark, Canada and France were all part of Avalonia during Devonian period while North China became isolated from other continents in Carboniferous time. During Permian, the lands moved closer together to form Pangea and finally in Triassic, Thetys Ocean was cut. This opened up the path for Atlantic Ocean’s formation.


8. Animal Arms Race – Oceans

The deep blue sea is teeming with life. Animals big and small form an intricate web of interdependence where each creature has their own set of tools to survive. From gaping mouths lined with dagger-like teeth to knock out punches and super speed, the creatures inhabiting our underwater world have evolved amazing adaptations to defend themselves or find prey.The ocean has been the battleground for many of history’s greatest wars. From naval battles to island invasions, the deep blue sea has seen it all. But beyond human conflict, there is a different kind of struggle going on beneath the surface—an underwater arms race between predator and prey. Animals are continually sharpening their skills, evolving new tactics, and developing ever more powerful weapons to survive in the big blue battleground.


9. How humans are exploiting the oceans

Exploring the depths of the Pacific Ocean, a team of researchers have set out to investigate the potential impacts of harvesting valuable raw materials from the ocean floor. Manganese, nickel, cobalt and copper are all in high demand across industries, yet what could be the consequences of industrial exploitation? The “Island Pride” expedition is examining the delicate underwater environment and its inhabitants. What will be the outcome of such human interference? Will it destroy or merely rearrange the ecosystems present at such depths? The team is debating if this harvesting of raw materials is a worthy endeavour. After all, it has been done on land for thousands of years with sometimes harmful effects to nature and people. At the same time, access to these materials could bring about necessary change.


Read On – Our Latest Top Documentaries Lists

David B