An angry sea lion bit a nine-year-old girl learning how to surf off the California coast, leaving her with bruises and puncture marks.

Corale Olsen was enjoying surf camp at Asilomar State Beach with her siblings when they suddenly spotted the animal in the water.

Within minutes, the ferocious sea lion pounced on Olsen while they swam 'pretty deep in the ocean,' she said.

'The sea lion went under my instructor's leg, and then it came up to me and it bit me. And then I got dragged under water,' Olsen told KSBW.

'It was pain, and I was screaming,' she recalled, adding that her surf instructor immediately stepped in to help.