Several beaches in eastern Australia have been closed after more than 100 sharks swam close to the shore to feed.
Hammerheads, gray nurse and whaler sharks were spotted along Queensland state's Gold Coast at the weekend.
Some surfers put themselves at risk by getting close to the creatures and an 18-year-old man was bitten in the leg by a small shark while paddling.
Swimmers are being urged to stick to beaches patrolled by lifeguards and protected by shark nets.
A 21-year-old woman was killed by three sharks in a regular shark-feeding area off North Stradbroke Island in Queensland in January.