This is part of the epic six-part underwater discovery series OCEANXPLORERS, co-produced by BBC Studios Natural History Unit and OceanX for National Geographic.

Jurassic Shark (37min)

The team is in the Azores to tag a deep sea giant — the sixgill shark — and learn more about its nightly patterns hunting for food in the abyss. For the first time ever, the team tags and retrieves valuable data, uncovering the secrets of why this prehistoric shark undertakes its epic journey from the depths at night.

This event has FREE ADMISSION. No registrations necessary.

Melissa Marquez and Pedro Afonso head down to a depth of 820 ft in a submersible to look for sixgill sharks. (National Geographic)