Slovakia is renowned for its remarkable and rare natural beauty, abundant in natural resources with several noteworthy geological features. However, the protection of nature has primarily been understood as the protection of biodiversity in Slovakia. For the conservation of geological diversity and landforms, very little has been done. Geoconservation or the protection of geodiversity is being applied to specific places known as geosites, where significant earth elements (geological, paleontological, geomorphological, hydrological and pedological) are protected, preserved and managed. Most geosites benefit from existing protected areas. Their protection is random and does not result from the recognition of their values. As discussed in the paper, geotourism related activities can undoubtedly contribute to promoting the protection of geosites in protected areas. Besides, through a geotourism approach, geodiversity can obtain public attention and positively influence the state of protected areas by its activities. Such initiatives not only can improve the protection of geological sites but also can play a crucial role in sustainable tourism development.

Geotourism as a globally growing phenomenon is based on several principles where sustainability plays a key role. The value of an individual site of visitors’ interest (geosite, geomorphosite, or site of geological heritage—a primary point of interest in geotourism) may be expressed via specific assessment methods. However, recent geosite assessment methods are primarily focused on various aspects of geoheritage (e.g., location, scientific value, representativeness, etc.) and very low attention is paid to the majority of geotourism participants—people for whom the various geotourism products are introduced and offered. The geotourism development itself would not be possible without interest of tourists (visitors) in such places. Without the knowledge of relevant visitor data incorporated within the assessment, as discussed in this paper, such values, representing the result of the geosite assessment process, cannot be effectively utilized to help future geosite development and management activities related to overall (geo)tourism progress.

Geotourism is sustainable tourism form which is primarily based on the existence of geoheritage. Many research studies have been devoted to assessing geoheritage in last two decades, from various perspectives. Depending on the assessment methods and results, authors of such studies often refer to potential geotourism development based on specific geoheritage values. This paper, based on a study and analysis of relevant literature retrieved from WoS and Scopus databases, focuses on assessment criteria and their relevance to geotourism development for the general public. The results show that the absolute majority of assessment methods are probably of high importance for experts. However, in terms of effective application of the assessment results to sustainable geotourism development, different criteria should be used, including visual attractiveness, uniqueness, accessibility, safety, and the possibility of gaining knowledge. In this regard, extensive research is required on how geoheritage and its interpretation appeal to visitors, especially among the lay public.

Shortage of surface water is considered an international problem that has even extended to countries that have rivers, in particular countries sharing the same river basins and downstream countries, such as Egypt. This issue requires intensive management of available water resources. Irrigation Canals Rehabilitation (ICR) has become essential to protect surface water in irrigation canals from losses due to seepage. Egypt is one of the countries that has started using this technique. This paper aims to evaluate the impact of ICR using concrete on the land and on crop yields. The SEEP/W model is used in the current study to estimate changes in the groundwater table and moisture in the root zone. Three cases studies have been simulated and compared including unlined, lined, and lined canals with a drainage pipe. The methodology is applied to three canals in the Nile Delta: Sero, Dafan, and New-Aslogy. The results demonstrate that ICR has decreased the losses from canals which resulted in lowering the groundwater, where the case of lining gave a higher reduction than the case of lining with a drainage pipe. In addition, the water table underneath the embankment was lowered. Decreasing the groundwater table could help to protect the land from logging and increase crop yields, but it may reduce the recharging of groundwater aquifers. Such a study is highly recommended in arid regions to decrease water losses where many countries are suffering from water shortage.

Sustainable tourism development within protected areas has been a subject of interest for professionals. The effective development of nature-based tourism can be beneficial to both the environment and people. This work presents the results of research on the positive and negative impacts of tourism in protected areas of Slovakia as perceived by the administrations of individual protected areas of the country. Subsequently, the paper highlights the major issues affecting sustainable tourism development in protected areas in Slovakia, based on a review of recent legislation and strategic documents. The results of the study indicate that the status of a large-scale protected area does not play a role in the perception of the impact of tourism. The most significant impacts of tourism in protected areas, according to their administrations’ perceptions, include an increase in waste production, informing local people about the value of the natural and cultural heritage, the education of visitors, the conflict of interest in using natural resources when doing business in a protected area, and the destruction of natural habitats. However, when linking the impacts of tourism to sustainable tourism development in these areas, current Slovak legislation does not allow for the sufficient development of nature-based tourism in protected areas in Slovakia. In this regard, appropriate measures are required to positively change the recent situation in this field.