Jellyfish

Beautiful but keep your distance — many species trail stinging tentacles well beyond what you can see. Moon jellies are harmless and ethereal; box jellies and Portuguese man-o-war demand serious respect. Check conditions before your dive.

Last updated April 2026

Fried egg jellyfishCotylorhiza tuberculata1 photos

Up to 35 cm010mOpen water

Unmistakable — a white bell with a raised central dome and blue-purple frilly oral arms tipped with bright orange. Looks exactly like a fried egg floating in water.

Common in late summer Mediterranean — drifts at the surface, essentially harmless to humans with a very mild sting.

Fried egg jellyfish

© Jouni Kuisma

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