A benefit of M3W is that wave conditions are specified directly in the model’s graphical user interface. The software takes spectral output from MIKE 21 Spectral Waves (SW) making it easier and faster to set up the model. Model output can also be used directly in dynamic mooring analyses using MIKE 21 Mooring Analysis (MA). Existing MIKE 21 Boussinesq Waves (BW) setups can also be converted to M3W model setups. Lastly, overtopping discharges from M3W can be used in MIKE FLOOD. Plus, there’s no need for external tools to calculate porosity (like in MIKE 21 BW). The natural porosity of the structures can be used directly.