Abstract: A water ski system which includes two essentially identical assemblies each assembly including a buoyant ski having a top surface, a bottom surface, a front, and a back configured to float on water. Each buoyant ski includes a pivoting paddle located on the bottom surface of the buoyant ski configured to deploy in a backwards motion and retract in a forward motion against a force of water in a motion similar to cross-country skiing. The device propels a user across water when manipulated. Each buoyant ski has a foot mount and a toe of a boot pivotally affixed to the top surface of the buoyant ski.

Abstract: A propulsion paddle system including a paddle-assembly having a pole including a first-end, a second-end, a handle, a floater, and a paddle. The handle is proximal to the first-end, the floater positioned between the first-end and the second-end, and the paddle is proximal to the second-end. The paddle includes an inverted umbrella profile which is configured to open and close to allow the pole to move forward with minimum friction. When the pole is pushed backwards, the paddle opens up to move a maximum volume of water and propel a user and a floating device such as a paddle board, boat or other watercraft through a body of the water. The present invention provides a pole and paddle combination that enables users to exert their energy efficiently when propelling a floating device, such as a paddleboard.