Abstract: By means of Water Wave Power acting upon floats, attached to and made part of mechanical contrivances devised within the context of this invention for which the name of HYDRO-UNDULATORY POWER ARRESTERS has appropriately been chosen, water surrounding the structure is to be pumped positively or forcefully and continuously at that, to locations higher in elevation than the level of the water in the basin where the devices are installed or against a water system which comprises one or more hydro-pneumatic tanks, so that summarily the entire scheme would amount to the building up of potential hydrostatic energy at the expense of Water Wave Power, which under present circumstances is not utilized at all but simply allowed to go to waste.