Aquaculture Direct engaged NIWA to complete a benthic survey and ecological assessment as part of a coastal permit application for an extension to marine farm 8203, near Camel Point, at the entrance to Tennyson Inlet, Pelorus Sound. This assessment comprised side-scan-sonar swath mapping of sites to characterise seabed topography, photo-quadrats of the seabed to ground-truth the side-scans and sled samples. The report indicated that the proposed extension is not expected to cause any significant adverse ecological effects. The ecological effects of farming the proposed additional mollusc species are likely to be no greater than the effects of farming green mussels. Farming of the algal species (as proposed) is unlikely to have any significant ecological effects. Work was completed during May-July 2014.