An Australian lad has taken to TikTok to explain the rather petrifying reason no one was swimming in the sea at one Sydney 'beautiful' beach. And it has absolutely nothing to do with sharks.

TikTok user @lil_vb_ was filming at Manly Beach, Sydney, as lifeguards instructed swimmers to exit the sea as a swarm of blue ...

“Do they hurt? Yes they do! “Not as bad as a blue bottle but the sting lasts a few hours and the scars a few days.” Brown 'snotty' jellyfish washed up on Sunshine Coast beaches ...