The BIG Waterplay Niagara water track brings splashing water fun to playtime. The blue canal system features a reservoir, a manual hand crank to generate currents, and two sluice gates. Little captains can regulate the current and maneuver boats through the locks. The set includes three different boats and a small seaplane for varied adventures. Thanks to the simple plug-in system with watertight seals, the playset can be assembled quickly and securely. Children learn about the physical properties of water and currents in a playful way.