Father Hennepin, the first white man to see the Falls at Niagara in 1697, wrote of ‘an incredible Cataract or Waterfall, which has no equal’, whose waters ‘foam and boil in a fearful manner.’

I wish’d an hundred times that somebody had been with us, who could have describ’d the Wonders of this prodigious frightful Fall, so as to give the Reader a just and natural Idea of it, such as might satisfy him, and create in him an Admiration of this Prodigy of Nature as great as it deserves.

(Hennepin 1698)