Abstract: The disclosure provides a paddle fin structure, which comprises a fin body and a base, wherein the fin body is inserted into and connected with the base through a pin. The pin is adopted to replace the traditional strip wire connection, and the installation and disassembly are convenient. At the same time, the special fin structure is adopted, which can effectively improve the flow diversion, reduce the resistance, improve the water diversion function, and increase the traveling speed.

Abstract: The present application relates to the field of game devices, and discloses a cornhole game board and a water cornhole game board. The cornhole game board includes a main body portion and a support leg portion that are connected. The main body portion is formed by a rectangular board, and one end of the main body portion close to the support leg portion is provided with a throwing hole formed through the rectangular board. The support leg portion and the main body portion may be flipped and fixed at a connection, such that the main body portion is inclined relative to a use surface, and a flip angle of the support leg portion relative to the main body portion may be adjusted. The main body portion and the support leg portion are both made of a drop-stitch air cushion fabric material.