This series documents PanGeo Subsea Acoustic Corer™ survey of the proposed Site W7 met mast location at the Hornsea offshore wind farm. The survey was carried out between 12th March, 2011 and 14th March 2011. The centre of the acoustic core was located at 433723.56 m Easting 5971290.85 m Northing. The survey was carried out to assist on the decision to place the met mast pile foundations. The objective of the survey was to provide 3D sub-bottom acoustically imaged datasets of Site W7.