The Blue Realm

Superb HD imagery, engaging stories and interviews with leading marine scientists take viewers on extraordinary journeys of discovery about the amazing creatures of the sea.


Air Date: March 19, 2019 - 44:43
There's no doubt sharks have an image problem. And they're certainly in trouble globally. The population of some species has declined by more than 90% due to over fishing. But there's still one place in the world where sharks thrive - the Bahamas.
Air Date: March 12, 2019 - 44:51
Around the globe, thousands of decommissioned naval vessels rot in dockyards. What can you do with these toxic time bombs? One solution is to clean them well, blow them up and sink them!
Air Date: February 28, 2019 - 44:36
They're beautiful - and deadly, with venomous spines that resemble a lion's mane. They're lionfish, a tropical reef species normally found in the Indo-Pacific