In many mountainous regions, ongoing reforestation leads to the permanent shrinkage of traditional landscapes connected with past human activity. Tourism is often perceived as a measure for the protection of traditional landscapes. Nevertheless, there is still a lack of in-depth studies exploring the connection between mountain glade conservation and tourism development. This paper aimed to determine whether tourism development can prevent the reforestation of temperate mountain glades and to assess the extent of its influence on traditional glade landscapes. Based on the example of the Western Beskids (Poland), we investigated the change in the range of glades in relation to tourist development, which has not been analysed until now. Cartographic analyses were used to examine how the landscape has changed since 1983. To determine the influence of tourist development on the landscape, the tourism landscape footprint (TLF) index was calculated. Two trends were detected: reforestation in glades that are touristically utilized and the gradual tourist development of the remnants of traditional landscapes within preserved non-forested areas. The study reveals that despite tourism, reforestation within glades is continuing, and simultaneously, the share of tourist elements in the shrinking glades is increasing. In the case of areas intensively used for tourism, the traditional landscape is disappearing as it is transformed into a tourist landscape. Further studies are necessary to assess the level of tourism development that will provide traditional landscape conservation in accordance with the principles of sustainable development.