A portable boat dock that is a rectangularly shaped and planar sheet of thermoplastic material, that is set between the bottom surface of a shoreline and a hull and keel of a boat beaching and docking on the shoreline. The thermoplastic material has a first set of evenly distributed apertures that allow the thermoplastic material to sink to the bottom of the shoreline, and can be secured to the shoreline with stakes or rope and can be anchored with small portable anchors that can be attached and removed with releasable clips. The thermoplastic material is light, durable and easy to store, and can be tied together to accommodate larger boats.