Costa summer sting as sea slugs spark surf ban

TOURISTS have been banned from a stretch of surf on Spain's Costa Blanca because of an invasion of venomous “blue dragon” sea slugs.

- BY KEITH PERRY

Categorised as a sea slug, the deadly creatures are dubbed “the most beautiful killer in the ocean”.

The mysterious and rarely spotted blue sea beast - also known as the blue angel, with wings like a dragon - is just over an inch long.