Looks a bit like a home video, grainy and a bit shaky camera. But makes it feel very natural in its atmosphere, and all the more terrifying when things go wrong. The story (as many “based on real events” stories) suffers a bit from predictability, but then again, once they are all in the water, the feeling of paralysis and helplessness comes across nicely. Why do they not just swim towards the coast? I don’t know, they may have their reasons, I would have done something, I guess. Don’t blame the sharks!