During cruise SO292 of the RV SONNE from May 15 to June 21, 2022, oceanographic investigations were carried out on an isolated carbonate platform of the Queensland Plateau (northeast Australia). A total of nine regular CTD casts were conducted with the ship's own CTD rosette. The data set obtained includes directly measured parameters such as water temperature, conductivity, oxygen, fluorescence and turbidity as well as derived variables such as potential temperature, density, salinity and sound velocity. The composition of the water masses and the oceanographic conditions contribute to the understanding of the sedimentation processes on an isolated plateau and help to understand the development of drift deposits. The CTD data also support the interpretation of the hydroacoustic and sedimentological investigations during the research campaign.