NOVELTY - The wave energy absorber (100) has a cross-sectional profile as seen in a cut-plane perpendicular to the front pivot axis. The absorber profile encloses a profile of the absorber body (103) and the front pivot axis (1). The absorber profile at the front side comprises a concave portion as seen in a direction from the front end (101) to the rear end (102). A lower rear edge (2) is located in a first radial direction at a first distance from the pivot axis, and the upper rear edge (3) is located in a second radial direction at a second distance from the pivot axis.    USE - Front pivot type wave energy absorber for absorbing waves from a body of water while used in an open wave breaker (claimed).    ADVANTAGE - The absorption unit may have a surprisingly high absorption efficiency of up to 70 percent or even more. The energy contained by the outgoing waves aft of the absorber unit may thus be effectively reduced as compared to incoming waves. Such a wave breaker system is open for fluid communication and the exchange of marine life, while on the leeward side providing coastal protection, protecting marine structures/installations, such as wind farms or fish farms, protecting spawning areas, or the like. The environmental impact of the wave breaker is minimized while providing an efficient protection against waves. The absorber units are arranged in parallel and next to each other along a protection line. The absorber units may be cascaded in series in order to increase the total wave absorption and improve the protection. In a cascaded arrangement, the downstream absorber should be dimensioned smaller than the upstream absorber, in order to account for the reduced size of the waves aft of the upstream absorber units. The absorber units of the open wave breaker are used for driving power take-off unit for producing useful energy from the motion of the absorber components with respect to the frame structure supporting them.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a providing method for a wave absorber.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of the absorber.    Front pivot axis (1)    Lower rear edge (2)    Upper rear edge (3)    Wave energy absorber (100)    Front end (101)    Rear end (102)    Absorber body (103)