A hand held aquatic exercising device includes a handle (10) and relatively moveable hydroresistive elements (12, 13) at respective ends of the handle. The hydroresistive elements can be moved to different positions relative to a longitudunal axis (34) through the handle. In another embodiment the hydroresistive elements are selectively removable from the handle. The hydroresistive elements can be assembled in different relative positions with the handle. The handle is selectively solid or hollow. The device thereby presents a resistance to the water that can be varied according to the desires of the user. The hydroresistive elements may be cup-like and may be flexible to facilitate reversal about their bases. A hand gripping element (50) facilitates rotation of the handle about the longitudinal axis while the gripping element is held in the palm of a user and the device is moved through water.