Daredevil surfers are flocking to the coast of Portugal to ride giant waves up to 100-foot high.
Incredible photos show the thrill-seekers riding the huge swells off the coast of Nazare, a fishing town north of Lisbon.
A 125-mile long underwater canyon – which is up to three miles deep – combines with strong Atlantic currents to create the enormous waves.
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London-based photographer Rui Boino captured images of brave surfers attempting to conquer the huge swells.
The 38-year-old said: ‘I always try to capture the unique expression, emotions and reactions from the subject. I loved photographing Nazare, despite the loud crashing of the waves, I find it so relaxing. You need to be there to see and feel the power.’
In the peak summer months, the beaches of Nazare attract thousands of sun-seekers, but the scene transforms in the autumn and winter, as the Atlantic winds pick up, causing the waves to grow in size and power.