Accessory for hydrofoil surfboards, stand-up paddle boards, and kiteboards in the nature of a bolt on tail system that provides forward movement in the water when moved up and down and attaches to hydrofoil surfboards, stand-up paddle boards, and kiteboards, the system is comprised of a mounting plate of stainless steel or aluminum, metal hardware in the nature of nuts and screws for attaching the mounting plate to the board, and a polycarbonate plastic tail for commercial use