On the instructions of E.ON UK Solway Offshore Ltd and E.ON UK Offshore Energy Resources Ltd, Osiris Projects were commissioned to undertake a post-construction geophysical survey covering the proposed Robin Rigg Offshore Wind Farm development site. The survey was undertaken using Osiris Projects own dedicated survey vessel, MV ‘So Fyne’ during the period 15th Feb to 18th April 2010. High-resolution side scan sonar, swath multi-beam, single beam bathymetry and magnetometer data were acquired along all survey lines, in order to accurately map the seabed within the wind farm area. Main survey lines were run at 100m centres, with cross lines at 200m centres. Additional lines were run 25m either side of individual turbine rows in both NNE-SSW and WNW-ESE orientations, giving four complete passes at each turbine location. The primary objectives of the survey were to map bathymetry and seabed features, including the presence of any magnetic anomalies within the wind farm area and along the export cable route to assess the condition of any recently installed cables.