These lucky divers spotted a huge and extremely rare species of jellyfish when they were diving in Puerto Vallarta, Mexico recently.
See also: Thousands of jellyfish wash up on Cornwall beach
See also: Ocean photographer captures amazing shot of fish trapped inside jellyfish
These jellyfish are rarely seen in this particular bay.
Luckily the scuba divers managed to keep out of reach of the jellyfish's tentacles and no one was stung.