Comprehensive range of surveying services Gatewing

Technology Experienced surveyors and planners

Registered Professional Surveyors Extensive

experience in a wide variety of survey tasks



We provide accurate, fast and efficient bathymetric data capture for inland waterways with our sonar equipment interfaced with RTK GPS.

We have undertaken three dimensional mapping of the channels of several of Southland’s larger rivers and the floor of inland and coastal waters including estuaries, lakes and lagoons.