This is the shocking moment a section of the Costa Del Sol sea turned brown after a pipe exploded just meters from British tourists' balconies.

Footage shows water gushing from a cracked underground pipe in Benalmádena before streaming through a popular resort toward the coastline.

Just seconds later, a large brown blotch begins to spread across the surf as horrified holidaymakers watch on.

A Spanish-speaking tourist filmed from a beachfront balcony near the Globales Los Patos Park Hotel as the drama unfolded.

She could be overheard asking a companion: 'What's that? Are they cleaning something?' before pointing out bubbles coming from the centre of the stain.