Ecotourism can be a solution for mitigating the negative environmental and socio-economic impacts of new developments in fragile environments. Before planning an ecotourist project, it is necessary to consider an area that not only covers the margins of the development zone, but also a wider perimeter of physically and culturally related landscape parts. This paper describes an approach to the demarcation and analysis of an expanded zone around a new reservoir near Bulawayo, larger than an originally designated narrow natural fringe. The concept gains in many ways, in landscape diversity, in cultural assets and in interaction with local residents to whom ecotourisms should be profitable in the first place. (C) 2001 Elsevier Science B.V. All rights reserved.