In the wild rapids of the Niagara River, fearless canoers battle the water and each other to collect gems along the riverbank. Of course, the most valuable gems are found furthest down-river, close to the waterfall. Yes, there is a waterfall, and careless canoers can fall over the waterfall. Also, players must return collected gems to land in order to be counted. At the end, the player who collects the most value in gems is the winner.