The Giant Octopus (Enteroctopus) filmed in East Sea of Korea.
Giant Octopus may grow up to 3m(10ft) in length and weigh more then 70kg(154lbs).
All still image courtesy of JungKwon Park (Diver in this video) aka Chambok.
Music licensed through goej.co/audiojungle
4K UHD original resolution available for licensing.