Bluebottles are basically harmless - they hurt, and if you're particularly unlucky you might even scar. Nothing be scared of. Box jellyfish (Irukandji) are a d

Bluebottles are basically harmless - they hurt, and if you're particularly unlucky you might even scar. Nothing be scared of. Box jellyfish (Irukandji) are a different story. These days there's a good chance you'll live (if you get to hospital), but you'll be in extreme pain for days or even weeks.