The growth of tourism, and its consequent benefits, are dependent on the maintenance, if not enhancement, of the West Coast's unique natural environment. Parts of this natural environment have been described as ecologically fragile. There are a range of tourist activities that consume water and produce solid waste and wastewater. An important issue is the tourists' additional demand for potable water and their production of additional wastewater. The major objectives of this research were to: develop models to estimate and project aggregated tourist water use and wastewater production at Hokitika, Harihari, Franz Josef, and Haast; and assess the adequacy and resourcing of the facilities to provide water, manage wastewater and solid wastes associated with tourism.