Add Yahoo as a preferred source to see more of our stories on Google. Brazilian surfer Naysson Costa rides the tidal bore wave known as "Pororoca," during the Amazon Surf Festival held in the Canal do ...

Surfing in the Brazilian Amazon begins with practitioners in the river, waist-deep in brown water, and a clap that starts the challenge: riding the “Pororoca,” one of the most admired and feared waves ...