Tourists swim with millions of jellyfish... but don't worry they've all lost their sting



A sea full of jellyfish is bound to strike fear into the hearts of many while mesmerising others with the intricate beauty of nature.



But swimmers plunging into this colossal army of jellyfish - staggeringly over one million in their number - would have no real reason to be afraid. In a captivating twist the entire fleet no longer have stingers strong enough to be felt by humans.

Millions of Golden Jellyfsh live in the isolated lake. They have evolved to lose their sting

Scientists reckon the huge group of Golden Jellyfish became trapped in Jellyfish Lake when it became separated from the Pacific Ocean. Cut off from certain sea-dwelling predators the wobbly creatures had no more need for a powerful sting and evolved differently to their ancestors out in the open water.

The stunning pictures were captured by U.S. Navy oceanographer John Bleidom. He and wife Amy bobbed around inside the 'smack' - the collective name for jellyfish - when he visited the marine lake on Eil Malk island, near the Philippines.

These stunning pictures were snapped by US Navy oceanographer John Bleidorn who spends his spare time diving

John's wife Amy holding one of the jellyfish, which no longer has a sting

The 35-year-old, who now lives in Yokosuka, Japan, said: 'Swimming in the lake is absolutely amazing. Being surrounded by millions of beautiful jellies is like floating through a lava lamp, but everything is alive.



'It truly a surreal and peaceful experience unlike any underwater environment I have encountered.



'The lake is famous for the millions of jellyfish that live there. The theory is that they have been trapped in there since the lake was last substantially attached to the ocean about 12,000 years ago.

Jellyfish lake near The Philippines attracts dozens of photographers every year

'Since then, the jellyfish have evolved differently than their ocean relatives. They are most likely related to the Spotted Jellyfish found in the nearby ocean waters.