A rare surfing competition has been held in Hawaii as waves of 12m (40ft) pounded Oahu's famous North Shore. The contest only takes places when waves continuously reach 12m high

Thousands of people gathered on beaches and cliffs to watch the world's greatest surfers tackle the waves.
It was only the eighth time in 25 years that the Eddie Aikau competition, named in honour of a celebrated Hawaiian surfer and lifeguard, was held.
The contest is only staged in the most extreme surf conditions and last took place in 2004.
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