Geodiversity and geoheritage represent an important resource for geotourism and subsequent economic development both in remote natural areas and in traditional, frequently visited recreational areas. Identification, assessment, and suitable management of particular geosites may contribute to the development of sustainable forms of tourism and attract more people to the topics of geodiversity and geoheritage. However, if there is only one aim represented by geotourism development, there can be a danger of overexploitation of geoheritage, especially if the sites are promoted less adequately and not provided suitable protection. This paper is focused on the assessment of particular sites, in terms of their Earth science interest, regarding their geotourist and geoeducational potential; it is also focused on an assessment of possible risks and threats which may be related to the higher promotion and more intensive use of these sites. Based on this, proposals for sustainable management, both for geotourism and geoeducational development and nature conservation, are presented and discussed.