We posted about a similar scenario in February whereJamie O’Brienand company connected the Waimea River on the island of Oʻahu to the surrounding ocean for an epic surf session(VIDEO HERE)but these dudes created a monster that made Jamie’s look like child’s play. This thing was absolute chaos and was borderline unridable for a hot minute. They are claiming they created“the world’s largest river wave”and I haven’t seen evidence to the contrary. Check it out: