Abstract: A seashore wave energy converting facility (10), comprising: an ascending ramp (12), being a sloped ramp installed at seashore line such that a lowered end thereof (12a) is immersed in the sea while an elevated end thereof (12b) is located above the sea level; a descending ramp (14), being a sloped ramp having a opposite slope with regard to the ascending ramp (12), the descending ramp being connected continuously by an elevated end thereof to the elevated end (12b) of the ascending ramp (12); a turbine (20) located under a lower edge of the at least one additional descending ramp (14); and a construction (18) for placing the facility (10) at seashore line; thereby enabling installation of the wave energy converting facility (10) at a seashore. The sea water may be directed to a spiral ditch, wherein the turbine is disposed, thereby increasing the power generation efficiency.