Measuring the extent of coastal benthic habitats is an important indicator of biodiversity, and is essential for the assessment of environmental change. This project aims to; Assess the geomorphology and sediments in order to better identify the distributions of distinctive biological communities; Develop a standardised geomorphological classification system for benthic features that can be applied across the various study regions and nationally; Improve the accessibility to the new acoustic datasets and image products by housing them in a national database linked with OzEstuaries