John Craig had to swim for more than three hours in Western Australia waters before reaching shore after being separated by his boat due to strong current. He used his speargun to fend off a tiger shark that followed him.

Craig was fishing underwater when his boat experienced engine problems and was swept away in strong currents.

He tried unsuccessfully to get the attention of his crewmate. When he looked underwater, he spotted a 13-foot tiger shark approaching him within arm's reach.

When Craig also spotted a sandbar whaler shark circling behind him, he made the decision to swim toward shore. It took him three hours.

READ MORE: LEARN ABOUT THE LIVES OF TIGER SHARKS

Craig estimates the shark followed him for about a quarter-mile before peeling off and disappearing for good.

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