Tourist destinations that are transfrontier in nature have marked the latest tourism innovation in East and Southern Africa. Owing to the emergence of borderless notion that supports the establishment of transfrontier conservation areas, the industry benefits from supra-national green destinations that increase free movement of tourists and services across state borders. This paper adds to an important literature on scale construction and its spatial implications for transfrontier tourism. It examines how the borderless notion is used to support scaling-up of tourism and the establishment of transfrontier destinations in East and Southern African regions. The main argument of the paper is that scaling processes that promote borderless tourism are necessarily a means of producing space for private projects of actors who are involved in facilitating these processes. The paper draw lessons from the East African Community and Southern African Development Community to demonstrate how these regional blocks are used differently to mobilize political support and legitimacy for ‘borderless tourism initiatives’. Subsequently, this discussion shifts towards examining how ecological and economic claims made of borderless destinations are directly associated with creating space for private investments of conservation organizations.