Sustainable tourism has become an area of great interest to both academia and industry over the past three decades, producing a large number of research studies designed to advance knowledge of the area. For tourist destinations concerned about the sustainability of tourism, the attraction of individuals who may have a lower ecological footprint/impact is desirable. However, a review of sustainable tourism and ecotourism literature reveals that over the past 15 years, there has been little advancement (or agreement) in regards to the definition of sustainable tourism/tourists or characteristics that may identify environmentally friendly (and sustainable) tourists. Given this lack of agreement and consistent research findings, it would be expected that current researchers would be providing a large number of recommendations for future work. Surprisingly this is not the case, with few of the reviewed papers presenting any recommendations at all. The review concludes with the authors’ views on where more research in the area of ecologically sustainable tourism is needed.