The dataset includes measurements of currents, waves, temperature, salinity, sea level, attenuation and concentrations of suspended particulates. The data were collected off the Holderness coast (just north of the Humber Estuary, UK East Coast) during the winters of 1993-1994, 1994-1995 and 1995-1996. The experiment involved the deployment of mooring platforms, each holding a bottom pressure recorder, acoustic Doppler current profiler (ADCP), electromagnetic current meter (EMCM) and a transmissometer, at 8 stations along two lines off the Holderness coast. There were very little ADCP data for the 1993 and 1994 deployments. The River-Atmosphere-Coast Study (RACS) was the component of the LOIS programme looking at processes from the river catchment into the coastal sea. The Holderness Experiment data were collected by the Proudman Oceanographic Laboratory (POL) and the University of Hull. The data are held by the British Oceanographic Data Centre (BODC)