Composite interpretation logs in Microsoft XL format for each of the ROV Holland (Marine Institute, Ireland) underwater video dive tracks collected during SeaRover 2017 research cruise onboard Irish Lights Vessel Granuaile between 4 July 2017 - 21 July 2017. SeaRover stands for Sensitive Ecosystem Assessment and ROV Exploration of Reef. This survey was commissioned by the National Parks and Wildlife Service (NPWS), funded by the European Maritime and Fisheries Fund (EMFF), and coordinated and led by INFOMAR (Integrated Mapping for the Sustainable Development of Ireland?s Marine Resources) and Ireland?s Marine Institute. In total, 50 underwater video dive transects have been collected during SeaRover 2017 survey. Thus, this dataset consists from 50 XL tables with each composite interpretation log providing information about the following: Media, Date, Time, SHIP_Lon, SHIP_Lat, SHIP_Hdg, SUB1_Lon, SUB1_Lat, SUB1_USBL_Depth, Salinity, Depth, Temperature, ID_Number, Observation, Event, Images, SAMPLING, substrate1st, substrate2nd, geo/bio/non, %living(BIO), Geomorphology, Features, Description, Annexe I, pressureType, BiotopeChange(countThuDive), DominantSpecies, ListedSpecies, MHCBIcode(Dominant), MHCBIname, MHCBIcode (Secondary), MHCBIname (2), MHCBI count (> 1 are mosaics), ListedHabitat?, COMMENTS. These detailed interpretation logs represent the foundation for the SeaRover 2017 Deep Water Reef Habitat & Species Video Analysis Report. None