The blue blubber jellyfish is the most commonly encountered jellyfish on the east coast of Australia. They form large swarms which are usually seen for a couple of days every year here in Sydney - usually around March. There is currently a large swarm of them at Shelly Beach, Manly but be warned - they do sting! These blue blubber jellyfish are actually strong swimmers and propel themselves with their bells which can be seen pulsating in this footage. By @dave_dives | Maduro Dive

explore.org - A whole lot of blubber going on! Let it all...