In the present study, the hydrodynamic interaction of regular and irregular waves with FBs in shallow and intermediate waters has been examined experimentally in a large-scale facility. The influence of the incident wave characteristics and certain geometric characteristics of the structure on its efficiency have been examined. Four different FBs configurations are examined: (a) single fixed FB, (b) heave motion FB, (c) single fixed FB with attached front plate (impermeable and permeable) and (d) double fixed FB. Results related to transmission, reflection, and energy dissipation of the incident (regular and irregular) waves on the structure are presented. The following conclusions can be derived: