The purpose of this benthic survey (cruise 1311A) in Loch Eriboll was to improve knowledge of the occurrence and distribution of species and habitats of recognised conservation importance, particularly priority marine features (PMFs). An underwater video and still photograph survey was conducted by MSS for MSS between the 22nd and 26th September 2011 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 32 sites within the loch. The images, analysed under SNH contract by Dr Colin Moore, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. MSS used the vessel MRV Alba na Mara for this survey - footage was collected from off Armadale on the same cruise.