Story highlights A 16-year-old dipped his feet at the beach and was bitten by mystery sea creatures

The teen is expected to recover

(CNN) A visit to a beach turned into a horror movie for a Melbourne, Australia, teen. The exact cause is a bit of a mystery, but tiny sea crustaceans may be to blame.

Sam Kanizay's feet were covered in what appeared to be thousands of bleeding pinholes.

After playing soccer with his friends, Sam Kanizay, 16, dipped his lower legs and feet into the familiar water of Brighton's Dendy Street Beach on Saturday to soothe his aching muscles, according to CNN affiliate Seven News . What happened next was unexpected.

"I walked out of the water, saw what I thought was sand covering my ankles below my calf, shook it off quite violently, and it came off," he told CNN affiliate Seven Network Australia. But what he shook from his legs wasn't sand.

Jarrod Kanizay, Sam's father, told the Post that when his son lifted his feet from the water, he saw blood. Lots of blood.

"He hobbled home pretty quickly. He rang me, actually, from outside," Jarrod Kanizay told the Post. "He said, 'Dad, you better come down outside.' I said, 'Why?' He said, 'Just come down!' "

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