In an oscillating fin propulsion apparatus operatively connected to a scuba diver moving on or through a body of water, a propulsive force may be produced by a pair of fins adapted to sweep back and forth in a generally transverse direction relative to the longitudinal axis of the scuba diver's body. The fins may be mounted on opposite sides of a frame detachably secured to a scuba tank. The fins may be rotatable in an oscillatory motion about respective axes coplanar to the center longitudinal axis of the frame. Drive members operable by the scuba diver may be operatively connected to the fins. The oscillating fins may provide a propulsive force to propel the scuba diver longitudinally forward during both oscillating directions of the fins as they sweep back and forth.

A hybrid paddle for use in both a standing and a kneeling position is disclosed. The paddle has a shaft terminating in a blade at each end. At or near each throat or junction between the shaft and a blade is a handle. The handle has a grip sufficiently offset from the blade to allow a user to grip the handle without his or her hand colliding with the blade. While kneeling, the user grips the shaft with both hands, and alternates the placement of the blades in the water. While standing, the user grasps the handle with one hand and the shaft with the other hand, and a single blade is placed in the water. In this way, the same paddle is used in both the standing and kneeling positions, and the user can alternate between standing and kneeling as desired.

A paddle assembly includes a paddle with a handle having a fixed blade attached at one end and a grip member attached at the opposite end, a removable blade and attachment unit configured to removably attach the removable blade to the paddle, such that the paddle assembly is able to take on a first, double-paddle configuration when the removable blade is attached to the end of the handle on the grip member side, or a second, single-paddle configuration when the removable blade is attached to the end of the handle on the fixed blade side and against the fixed blade.

The present disclosure provides an aquatic exercise and flotation apparatus comprising a handlebar for maneuvering the apparatus, a flotation cylinder positioned on the handlebar and encompassing the handlebar by way of a hollow center, a first fin positioned at the first longitudinal end of the handlebar, and a second fin positioned at the second longitudinal end of the handlebar.

The present disclosure provides an aquatic exercise and flotation apparatus comprising a handlebar for maneuvering the apparatus, a flotation cylinder positioned on the handlebar and encompassing the handlebar by way of a hollow center, a first fin positioned at the first longitudinal end of the handlebar, and a second fin positioned at the second longitudinal end of the handlebar.

The present disclosure provides a human-powered entertainment device. The entertainment device includes an inflatable base and a paddling component which is connected with the inflatable base, wherein the paddling component is adapted to swing when a force is imposed thereon, so as to perform paddling in water to make the human-powered entertainment device move on water. Accordingly, the entertainment device of the present disclosure can be driven to move and low in cost.

The present disclosure provides a human-powered entertainment device. The entertainment device includes an inflatable base and a paddling component which is connected with the inflatable base, wherein the paddling component is adapted to swing when a force is imposed thereon, so as to perform paddling in water to make the human-powered entertainment device move on water. Accordingly, the entertainment device of the present disclosure can be driven to move and low in cost.

A stationary aquatic kickboard for leg kicking exercises in water. Aging and quadriceps decline are the origin of this products creation. TKS is anchored to the swimming pool wall or deck by two separate lines having equal tension when in use. The buoyancy of the kickboard is adjustable to accommodate persons of different body weight and for the preferred level of flotation. The handle grips positions will permit user to exercise in the prone or supine positions. Board and handle grips will provide high stability to do high intensity leg kicking action. This equipment is able to detach for removal from pool. TKS Hydrakick System will be used for exercise, physical therapy, relaxation or recreation. TKS hydrakicking is optimal lower extremity exercise and does not cause trauma to the legs.

A stationary aquatic kickboard for leg kicking exercises in water. Aging and quadriceps decline are the origin of this products creation. TKS is anchored to the swimming pool wall or deck by two separate lines having equal tension when in use. The buoyancy of the kickboard is adjustable to accommodate persons of different body weight and for the preferred level of flotation. The handle grips positions will permit user to exercise in the prone or supine positions. Board and handle grips will provide high stability to do high intensity leg kicking action. This equipment is able to detach for removal from pool. TKS Hydrakick System will be used for exercise, physical therapy, relaxation or recreation. TKS hydrakicking is optimal lower extremity exercise and does not cause trauma to the legs.

A stationary aquatic kickboard for leg kicking exercises in water. Aging and quadriceps decline are the origin of this products creation. TKS is anchored to the swimming pool wall or deck by two separate lines having equal tension when in use. The buoyancy of the kickboard is adjustable to accommodate persons of different body weight and for the preferred level of floatation. The handle grips positions will permit user to exercise in the prone or supine positions. Board and handle grips will provide high stability to do high intensity leg kicking action. This equipment is able to detach for removal from pool. TKS Hydrakick system will be used for exercise, physical therapy, relaxation or recreation. TKS hydrakicking is optimal lower extremity exercise and does not cause trauma to the legs.