"The Reef" is only loosely based on the overturning of a fishing trawler in rough seas off the North Queensland coast in 1983. The three survivors were attacked by one or more Tiger sharks, and only the captain was able to swim to a reef where he was rescued by searchers.
"The Reef" tells the story of four friends who are forced to abandon their overturned small yacht off the coast of North Queensland when the boat's keel is torn off by impact with rock or coral. There is little time for character development in the short time that elapses before tragedy strikes the travellers.
Fearing that the boat will be carried further out to sea by the current or sink, the four decide to swim to Turtle Island which is believed to be about ten miles away. On their long swim they are constantly stalked by one of the most fearsome predators in the sea - a Great White shark. The impact of the story is greatly enhanced by the refusal of the film makers to fall back on unrealistic CGI sharks. As they are repeatedly attacked by the Great White, the actors appear to be actually in the sea with a real shark. The cinematography, both above and below water, deserves the highest marks. Without giving the story away, it can be said that the film has some truly frightening moments, and the sense of unrelenting menace creates almost unbearable tension and raises this film well above "Open Water" on a scare factor rating.
The product of 15 million years of evolution, the Great White is probably the most intelligent shark in the sea, and noted for its ability to lift its head out of the water to appraise its prey or those who are hunting it, as was seen in "Jaws". Attack images of the outthrust jaws of Great White sharks are truly nightmarish and the film makers have not erred in placing this monster close to Turtle Island which is located at the southern end of the Great Barrier Reef. The Great White has been known to range much further north along the Great Barrier Reef.