![World Surf League on Twitter: "River wave. #Pororoca #Brasil #Amazon Photo | Daniel Smorigo http://t.co/JkkMqMrLT1" / Twitter World Surf League on Twitter: "River wave. #Pororoca #Brasil #Amazon Photo | Daniel Smorigo http://t.co/JkkMqMrLT1" / Twitter](https://pbs.twimg.com/media/CEGmvTQUkAIJtR_.jpg)
World Surf League on Twitter: "River wave. #Pororoca #Brasil #Amazon Photo | Daniel Smorigo http://t.co/JkkMqMrLT1" / Twitter
![4 Tidal bore (pororoca) at Araguari river-mouth. Date: 30 October 2008... | Download Scientific Diagram 4 Tidal bore (pororoca) at Araguari river-mouth. Date: 30 October 2008... | Download Scientific Diagram](https://www.researchgate.net/profile/Valdenira-Santos/publication/305653955/figure/fig4/AS:442566421291011@1482527465763/Tidal-bore-pororoca-at-Araguari-river-mouth-Date-30-October-2008-Photo-Valdenira.png)
4 Tidal bore (pororoca) at Araguari river-mouth. Date: 30 October 2008... | Download Scientific Diagram
![A surfer rides the thunderous "pororoca" tidal bore wave on Amazon river near Caviana island in Marajo in Para State, part of the Brazilian Amazon jungle, June 17, 2011. The word "pororoca" A surfer rides the thunderous "pororoca" tidal bore wave on Amazon river near Caviana island in Marajo in Para State, part of the Brazilian Amazon jungle, June 17, 2011. The word "pororoca"](https://c8.alamy.com/compfr/2d42c7f/le-surfeur-bresilien-savio-carneiro-fait-le-long-de-l-onde-marecageuse-de-pororoca-pendant-le-circuit-national-de-pororoca-sur-le-fleuve-mearim-a-environ-30-km-19-miles-a-l-interieur-de-l-interieur-de-la-mer-dans-la-jungle-amazonienne-pres-de-la-ville-bresilienne-du-nord-d-arari-dans-l-etat-de-maranhao-le-17-avril-2003-le-terme-pororoca-vient-du-terme-indigene-amazonien-signifiant-destroyer-great-blast-les-vagues-crasseuses-et-orageuses-ont-chavire-des-bateaux-et-ont-lave-la-plupart-de-tout-dans-son-chemin-deux-fois-par-jour-le-phenomene-commence-lorsque-les-marees-atteignent-l-eau-peu-profonde-de-la-riviere-qui-coule-a-l-embouchure-il-peut-etre-entendu-deux-heures-2d42c7f.jpg)
A surfer rides the thunderous "pororoca" tidal bore wave on Amazon river near Caviana island in Marajo in Para State, part of the Brazilian Amazon jungle, June 17, 2011. The word "pororoca"
![Amazon.com: Pororoca: Surfing the Amazon aka Pororoca: Surfando o Amazonas [Import] : Ross Clarke-Jones, Picuruta Salazar, Carlos Burle, Eraldo Gueiros, Bill Heath: Movies & TV Amazon.com: Pororoca: Surfing the Amazon aka Pororoca: Surfando o Amazonas [Import] : Ross Clarke-Jones, Picuruta Salazar, Carlos Burle, Eraldo Gueiros, Bill Heath: Movies & TV](https://m.media-amazon.com/images/I/412w1QInqZL.jpg)
Amazon.com: Pororoca: Surfing the Amazon aka Pororoca: Surfando o Amazonas [Import] : Ross Clarke-Jones, Picuruta Salazar, Carlos Burle, Eraldo Gueiros, Bill Heath: Movies & TV
![Ocean tidal bore (wave), or pororoca (big roar) sweeps upstream against the Amazon River's flow in Brazil Stock Photo - Alamy Ocean tidal bore (wave), or pororoca (big roar) sweeps upstream against the Amazon River's flow in Brazil Stock Photo - Alamy](https://c8.alamy.com/comp/BNX4Y7/ocean-tidal-bore-wave-or-pororoca-big-roar-sweeps-upstream-against-BNX4Y7.jpg)