Kirihonuhonu (Lake Emma), a relatively small and shallow lake, lies between the upper reaches of the South Asburton and Rangitata rivers’, with a maximum depth of 3 m. In summer months, the lake has been susceptible to high nutrient levels and algal biomass concentrations. However, nutrient levels and algal productivity have fallen in recent years. The lake is popular for water activities and fishing (source lawa.co.nz)
