Estuaries in South Africa face negative crowding effects with respect to motorised boat use, due to competing demand. This paper proposes this be managed through user charges and that the setting of these charges be informed by applying a choice experiment to estimate user preferences for reduced motorized boat congestion on the Kromme River Estuary, Eastern Cape. The application of this method led the paper to deduce that users are willing to pay an additional supplementary charge of R483 per annum during peak periods in order to experience a decrease in negative crowding effects and an improvement in overall welfare.