The model test of the Semi-Submersible Mussel Farm in the Deltares test facility in Delft was completed successfully. OOS SMF B.V. asked Deltares to evaluate their concept for a Semi-Submersible Mussel Farm (SMF) through physical model testing. Most important questions for Deltares related to the mussel lines and in particular: motion behavior of the lines, The force of the lines generated by waves and its influence on the platform, the influence of the lines on current and flow rate in the middle of the field and possible reduction of nutrient supply.