This paper examines whether small-scale ecotourism is sustainable. For the purpose of the paper the term 'ecotourism' has been refined, and evaluation criteria compiled for small-scale community ecotourism comprising of three concepts: environmental sensitivity, socio-cultural appropriateness, and economic viability. The case study of Niue was chosen because it met the initial evaluation criteria, and was used to determine whether small-scale community ecotourism was sustainable. Niue's tourism industry was assessed in the areas of environmental, socio-cultural and economic viability and all three must exist in symbiosis to achieve sustainability. The results of the research show that Niue's tourism industry is sustainable only in environmental and socio-cultural aspects, however, due to insufficient visitor arrivals it is not economically viable. Niue is isolated, reliant on aid and is the most expensive destination in the South Pacific due primarily to the cost and frequency of the air service. Niue can increase its visitor numbers to achieve economic viability, or attract higher spending visitors to the island. Care must be taken not to exceed the island's carrying capacity, which would cause negative environmental and socio-cultural impacts. A balance needs to be made between the three concepts to achieve sustainability, with careful planning and monitoring.