Shark sightings have sparked chaos at Sydney beaches on Friday morning. Manly Beach was evacuated just before 7.15am after the shark was spotted by a surf life saver. A shark has been spotted at Manly Beach. There has been a string of shark sightings and attacks in recent weeks. Advertisement AdvertisementAdvertisement AdvertisementHe was jumping from a 6m rock with his friends near Shark Beach at Vaucluse when he was bitten by the suspected bull shark.