Join experts in undersea exploration as they launch a deep-sea vehicle into the ocean. The team launch an underwater drone which provides a live feed of the complex underwater environment, consisting of a sandstorm and a far more turbulent terrain than they could have ever anticipated. Witness undersea exploration combine with innovative visualisations in brand new episodes of Drain The Oceans, tonight at 8pm, only on National Geographic UK. | National Geographic UK

Combining exploration undersea and underground with innovative visualisations, Drain The Oceans reveals hidden evidence of amazing mysteries. By embracing a gripping new style, hear stories through the firsthand testimony of explorers and archaeologists, and uncover their discoveries of the secrets buried underwater and deep in the earth. Brand new season of Drain The Oceans, starts Monday 4th October at 9pm on National Geographic UK. | National Geographic UK

Tomorrow, National Geographic is going deep underwater to solve the world’s greatest mysteries. #DraintheOceans | National Geographic TV

Tonight we explore the 66 million year old question... what killed the dinosaurs? #DrainTheOceans | National Geographic TV

We're rolling back the waves to bring these underwater secrets to the surface. A new season of Drain the Oceans premieres Monday at 9/8c. | National Geographic TV

More than 70% of the Earth's surface is covered in water. That's a lot of buried secrets.... Tune in for Drain the Oceans, from Tuesday August 7 at 8.30pm AEST on National Geographic. | National Geographic Australia

The Mississippi River has a rich history in the U.S. and Clint Willson hopes to discover some of the river's underwater secrets. #DrainTheOceans | National Geographic TV