This dataset contains data collected from 24/2/97 to 24/8/98 in the Lower Reaches of the Huon Estuary, Tasmania. One day surveys were carried out on five occassions on the day preceding HES4, HES5, HES6, HES9 and HES10 (see Huon Estuary Study - Spatial Survey Data 1996-1998 for details of these surveys). Physical Snapshots Surveys 1(PS01) & 2(PS02) took the form of a number of rapidly deployed CTD's and underway data collection. For Physical Snapshots Surveys 3(PS03), 4(PSO4) & 5(PS05) only the underway system was deployed.