A lion's mane adrift in the deep blue... Lion's manes are one of the largest species of jellyfish, and when fully grown their tentacles can reach a staggering 40 metres in length, rivaling the size of blue whales. . . . . . #lionsmane #jellyfish #jellyfish_stagram #underwater #ocean #sea #diving #scuba #freediving #oceanphoto #oceanphotography #underwaterphotography #australia #jelly