Geophysical methods are key elements in site characterisation and critical to the spatial understanding of the seabed and sub-bottom conditions. These survey techniques are designed to collect data which is appropriate to the specific project, the developmental stage of the project and the prevailing seabed conditions. Hydromaster and its staff have specialised experience in the engineering application of geophysical methods in intertidal, shallow and deep water developments throughout the world utilising traditional and advanced geophysical techniques to maximise the understanding of the ground conditions and associated project risks.