The Cannibal Islands by R.M. Ballantyne, Fiction, Classics, Action & Adventure

In such canoes they went forth to war upon the water, and their sea-fights were not less sanguinary than those of the land. In one battle that was fought between the people of Huahine and those of Raiatea immense slaughter took place. The fleet of one side consisted of ninety war-canoes, each about a hundred feet long, and filled with men. They met near a place called Hooroto, when a most obstinate and bloody engagement ensued. Both parties lost so many men that, when piled up on the day after the battle, the dead bodies formed a heap "as high as the young cocoa-nut trees."