It's called the "Giant Phantom Jellyfish".
It's A harmless creature, & doesn't sting. It can also eat fish with it's tentacles.
They're very hard to find. They can grow to be 10 meters long AKA 33FT long, making it one of the biggest jellyfish in the ocean. Fish uses this giant to hide from prey.
It can look creepy, but it's also beautiful looking.

Wow! God makes A lot of beautiful creatures on this planet.