WATCH the chilling moment a group of beachgoers were blissfully unaware they were paddling a next to a three metre long shark.
The four swimmers were filmed heading into the sea in Cornwall by a nearby hiker who caught the the chilling moment on camera.
Twitter / @KrazyItchKatieThe predator was spotted at Porthcurno Beach in Cornwall[/caption] Twitter / @KrazyItchKatieFour swimmers appeared not to have noticed it lurking nearby[/caption] Twitter / @KrazyItchKatieThankfully...