Surfers from across Brazil descended upon Pará state on June 4th to surf a rowdy looking tidal bore at the mouth of Amazon River created by the gravitational pull of the Strawberry Moon.

During full and new moons, when the tide is the highest, the Amazon’s flow can actually reverse upstream often creating waves that are actually ridable. The indigenous people call it Pororoca which roughly translates to “Big Roar.”

Surfing this Amazonian tidal bore comes with some unique challenges including the bouancy of fresh water, debris (sometimes entire trees) and the occasional snake or piranaha. Wild.