A stand-up aquatic device is provided that includes at least one float member formed of a buoyant material. The float member has an upper surface and a lower surface for contacting the water. Additionally, the float member has at least one cut-through such that an end portion of the float member can be lifted to alter the shape of the lower surface of the float member so as to provide a different footprint in the water. Additionally, there is provided a float member formed of a buoyant material for use in a stand-up aquatic device. The float member includes an upper portion having an upper surface with a first shape, and a lower portion having a lower surface with a second shape, which has less surface area than the first shape. Further, a stand-up aquatic device is provided that includes at least one float member formed of a buoyant material and two pieces of flotation material. The float member has a flat upper surface and a lower surface for contacting the water, and the two pieces of flotation material attach to the ends of the upper surface of the float member to provide additional buoyancy.