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Is this the biggest wave ever surfed?

A Brazilian surfer claims to have successfully taken on one of the world's biggest waves in Portugal, which reportedly reached heights of up to 30 metres .

A Brazilian surfer claims to have successfully taken on the world's biggest wave in Portugal, which reportedly reached heights of up to 30 metres .

Carlos Burle is awaiting confirmation from Guinness World Records to see if he has beaten Garrett McNamara's effort on the same Nazare beach in January.

Catharina Moh reports.