Bathymetric or Hydrographic surveys can be performed using a singlebeam or multibeam echosounder.

These surveys are performed offshore, along the coast, in ports, harbours, lakes, dams and rivers.

These surveys are performed to detect objects buried under the seabed. The trace obtained has to be interpreted by geotechnical experts for reliable results.

These surveys are useful in detecting wrecks and pipelines as well as other natural and man-made objects buried under the seafloor. 

Side scan surveys are used to detect objects on the seabed and give a three-dimensional image.

These surveys are useful in detecting wrecks and pipelines as well as other natural and man-made objects on the seafloor.

This is a type of bathymetric survey which gives a three-dimensional image of the topography of the seabed.

It is also useful in detecting wrecks and pipelines.