Abstract: A semi-submersed floating striking exercise device with a striking portion to be filled with water, a floatation portion at least partially above the striking portion, the floatation portion to be filled with air and an above-the-water portion to be filled with air, the above-the-water portion positioned above the floatation portion. The striking exercise device also includes at least one of a handle and/or an attachment device, at least one air inlet for inflating the floatation portion and the above-the-water portion, and a water inlet for filling the striking portion with water. The striking exercise device optionally includes a tether with a first end and a second end, and a tether harness to be worn on a user, wherein the first end of the tether is attachable to the semi-submersed floating striking exercise device and the second end of the tether is attachable to the tether harness.