Show cave websites in Serbia: Evaluation and potential improvements

Show caves and speleotourism can have a major impact on the tourism industry as well as the local and regional economic development. Promotion is a crucial aspect of generating plans and strategies for tourist caves. In the case of speleotourism, promotion needs to be professional, attractive and continuous because caves are often considered to be dangerous and inaccessible places. The main goal of this paper is to determine the quality of official show cave websites in Serbia. The assessment included the application of modified Website evaluation model. Website design techniques were also assessed, including the performance and the degree of optimization for search engines SEO. The results show extreme deficiencies and weaknesses regarding the level of internet promotion of Serbian show (tourist) caves. These results are of great importance for cave management teams and tourist organizations because they point out the negative factors of cave promotion in Serbia that need to be revised.


Introduction
The Internet has a major impact on the tourism market and it can be used productively for economic development. Promotion, product distribution and research functions play an important role in tourism modernization (Joviţiš, 2019). The application of advanced technologies for tourist affirmation can significantly transform the tourist and economic state of a particular area. Information technology has proven to be an effective tool for creating prosperous and economically sustainable destinations (Kamperman Sanders et al., 2018).
Information and communication technology allow tourism workers and tou rists to easily contribute their thoughts, opinions and creations to the Internet. Tourism workers can implement various marketing strategies for their products, while consumers can obtain information for the trip-planning process, destinations, accommodation, restaurants, tours, and attractions (Hays et al., 2013). This use of technology creates multiple ways of promoting tourist sites, which are completely dependent on the success of marketing strategies.
As the demand for tourism services in natural areas has increased, many management structures have recognized a potential for adding complementary sites to tourism supply. This is particularly important for areas that are not currently attractive destinations (Palmer & Bejou, 1995). This is often the case with geoheritage sites, which possess a satisfactory level of tourism potential. Particularly valuable geoheritage sites are caves, that serve as the nucleus for the emergence and development of speleotourism. Arranging a speleological object for tourism purposes includes complex multidisciplinary activities and it requires modification of the unwelcoming raw underground space (Garofano & Govoni, 2012). Moreover, show cave management must continuously apply adequate marketing strategies to attract as many tourists as possible.
The promotion of show caves is particularly specific and important, as some caves can be inaccessible and dangerous places (Walker, 2007). Therefore, the Internet tourist promotion of caves may be crucial for tourists when choosing a destination. Furthermore, good quality promotion of the cave is equally important for management structures as it brings a professional, responsible, modern and sustainable way of tourism business. The interpretation of show caves is a very important aspect of karst management and sustainable development of geotourism and cave tourism. -The explanation of the speleological, geological, geomorphological, and archeological values of caves can help visitors understand and appreciate their significance and the importance of their protection for future generations‖ (Beraaouz et al., 2019). The conducted research aims to show the current state of the internet promotion of tourist caves, as well as the possibilities of improving and modernizing speleotouristic promotion in Serbia. The evaluation analysis in this paper shows significant differences between Serbian caves and Postojna Show Cave (Slovenia) in terms of internet promotion and Website quality. For the purposes of this research, two caves in Serbia and one in Slovenia were singled out. Since only the Ceremošnja and Resava show caves (Figure 1-a,b) have official websites (www.resavskapecina.rs/site; www.ceremosnja.com), these caves have been evaluated via the modified Website Evaluation Model. As a case study from Slovenia, the Postojna show cave was assessed (Figure 1-c), which is a very important speleological object on the international tourist market. These results are important for managers and tourism organizations in charge of cave management and speleotourism development, as they indicate deficiencies that need to be revised in order to reach a higher level of internet promotion quality.

Tourism websites
The maximum utilization of information technology for the purposes of tourism development involves the application of creative and practical methods in order to achieve a quality promotion of all tourist attractions. Even if a tourist attraction does not have great aesthetic value, with a well-prepared promotional strategy it can achieve competitiveness in the market (Papadopoulos & Heslop, 2014). This is often very important for management structures dealing with the natural tourist sites, which are not easily accessible to visitors.
Quality promotion can encourage adventure and recreational activities (Vyas, 2019), but it is of great importance to provide all the necessary information to avoid certain consequences (tourist complaints, lawsuits, negative image, etc). Without the implementation of quality promotional strategies, the advancement of tourism products cannot be expected (Liu & Li, 2019). Websites and Social media are the ideal channels through which customers ' interaction with a tourist site is inspired (Ioanna & Yioula, 2012).
The Internet has increased and improved the consumption of tourist information; users reach the virtual world with full satisfaction in search of everything they need to arrange an d carry out their journey. Furthermore, it is evident that tourist organizations recognized the value of getting their own official website, which enables them to display information about destinations online. As a result, websites for institutional touris m have become important networking platforms that deliver a lot of knowledge (Gómez-Martín et al., 2017). That is why it is necessary to carefully consider the content and information that is displayed on the Internet related to tourist destinations.
-Tourism website has the capacity to operate on multiple levels through communication that interacts with prospective visitors, to build valid expectations, protect the destination and built landscape and heritage narrative in the earliest stage of the tourist experience‖ (Krisjanous, 2016, p. 5). Therefore, the greater the extent of communication and business transactions, such as orders and purchases, on tourism websites, the more likely is for tou rist organizations to turn a potential tourist into a real tourist (Cao & Yang, 2016). This is a significant capability for tourist organizations, which can be used effectively for sustainable economic growth.

Caves and spele otourism
The karst environments include unique landscapes (Wozniak et al., 2017), surface (limestone pavement, sinkholes, cove, karst fields) and underground (caves, pits) karst formations (Ford & Williams, 2007) which are visited by many tourists. A rather unique, attractive and often economically viable form of tourism, originating from the karst regions is speleotourism (Lazareviš, 2000).
Speleotourism in some parts of the world provides extremely high economic results (Postojna Cave, Slovenia; Mammoth Cave, Kentucky, USA; Altamira Cave, Spain; Lascaux Cave, France, Neptune Cave, Italy and others). However, these caves have international significance because of their unique geomorphological or anthropogenic attractiveness (cave painting, speleo-archeology, etc.) and it is not easy for other caves to reach such a high level of attractiveness or visitor numbers and match and become competitive on the global speleotourism market.
The importance of show caves is reflected in their purpose, i.e. the reason for the visit. According to (Cigna, 2016), the largest number of visitors visit caves as tourists, followed by religious reasons, while the economic performance is greatest by tourists and visitors who come for health reasons.
Certainly, the attractiveness of caves does not have to be directly related to the rich tourist infrastructure. Increasing the number of tourists can be achieved by maintaining the natural appearance of the caves, for which caves in Slovenia, such as Postojna Cave and Škocjan Cave, are known (Tiţar et al., 2018). The importance of these caves is great and therefore promotional strategies bas ed on sustainable principles should be implemented.
In contrast, in the area where the Agu-Owuru cave is located, tourism is poorly developed and improvements in tourism infrastructure are a good step for attracting visitors. In addition, promotion through traditional and modern media and involvement of the local population is proposed. An important success factor is the level of knowledge of the local population about ways of promoting the tourist offer (Okonkwo et al., 2017).
Some caves have a great religious significance, which is one of the circumstances that should be taken into account during the promotion. For Batu Caves (Kuala Lumpur), promotion through religious rituals and other events that will best present the significance of these caves to potential tourists is suggested (Musa et al., 2017). Also, to increase the number of visitors, it is necessary to use the potential and uniqueness of the Thaipusam celebration through marketing activities (Arasi Paniandi et al., 2018). The awareness of local communities about natural tourist values is also important, especially in the case of Ajalli cave (Nigeria) where a certain part of the population does not know that the cave exists at all. In order for the cave to be presented in an adequate way, it is necessary to engage tourist guides. However, the financial problem is the limiting circumstance of the development and promotion of this cave and therefore it is suggested to invite stakeholders to help implement the development strategies (Oguamanam & Nwankwo, 2015).
The development of geoheritage, such as caves, needs to be approached individually, first because of the location (country or region) in which it is located, then the level of tourist development and tourist potential. An analysis of the current state of show caves is necessary to understand the shortcomings of promotion.

Methodology
Our assessment included the implementation of the Website Evaluation Model (Table 2)  Selected attributes of the website design technique were also assessed, including the performance and the degree of optimization for search engines SEO. The tests were performed using selected internet applications (Król & Zdonek, 2020). In addition, Google's mobile friendliness test and Google lighthouse best practices audit was performed (Giannakoulopoulos et al., 2019).

Results and discussion
The websites were characterized by relatively good performance, with the highest values of performance indicators recorded for the ‗ceremosnja.com' website (Table 3). At this point, however, it is worth noting the slightly worse performance of websites o n mobile devices.
There has been a relatively high potential for website optimization for search engines SEO (Table 4). SEO is a complex phenomenon, so detailed tests are necessary to detect SEO attributes that need improvement.
All the researched websites were adapted to mobile devices. They differed in the speed of loading in the web browser window, with the best values of this attribute recorded for the ‗ceremosnja.com' website (Table 5).
Generally, evaluated sites were technically well prepared. However, it is necessary to conduct detailed tests that will indicate critical points that require improvement, e.g. in the area of SEO and performance.    2019), the most important elements for Serbian speleotourists are tour guide service, visitor centers, interpretive panels and promotional activities. These factors need to be the primary focus of further speleotourism development. At the moment, caves in Serbia usually play the role of additional attractions that are included in other tourist offers. In the future, it would also be beneficial to create a unified speleoroute which would connect all the show caves in Serbia into a unique speleotourism product attractive for a larger number o f both domestic and foreign tourist markets. Before designing and implementing this route, it is necessary to work on the show cave arrangement, as well as constructing additional tourist infrastructure and engaging in better promotional activities.
The only two caves in Serbia that have the official website are Resava and Ceremošnja show caves. These websites were taken as examples for a thorough evaluation and comparison with the Postojna Cave website, which has also been evaluated. Additional website values of Postojna cave were rated with maximum values, while the Resava cave website received 2 points and Ceremošnja cave website received 0 points, out of 10 for the same values. Marketing effectiveness values include having a site map and links to local companies, which are the only attributes that the Resava cave website has. The lack of ticket purchase or reservation option and not displaying the local weather forecast are major flaws that need to be revised. The absence of additional values of the Ce remošnja cave website indicates a clear lack of factors that complement the website and help potential tourists to organize their visits more easily. The technical structure of the Resava and Ceremošnja websites is also completely noncompetitive with the Postojna website, which is much more user-friendly, and it possesses a site map. The lack of other indicators should also be mentioned, including: social media links, the ability to use other languages and local weather forecast.
The final results of the Modified Website Evaluation Model are shown in the matrix ( Figure  2). Resava cave is positioned in the field F 5-12 , representing the moderate main and low additional values, while Ceremošnja cave is positioned in the field F 5-6 , which represents low main and low additional values. Postojna cave is positioned in the field F 10-18 , representing the high main and high additional values. The large difference in values is evident and indicates the very low quality of promotional speleotourism activities in Serbia. In addition, it is important to note that the lack of websites of other show caves in Serbia is a major disadvantage. It is necessary to engage a marketing team, which would create good websites, standardized in accordance with the latest trends in the promotion of speleotourism in the world. It is important to suggest the limitations of this study. First of all, the number of caves used in the research is small, because only two caves in Serbia have official web presentations. Considering that the goal of the research is to analyze caves in Serbia, one cave was used for comparison, which is justifiable. The reason for such a small number of samples is the lack of official web presentation of other caves in Serbia, which is certainly a major shortcoming in the promotion and development of caves. Furthermore, the limitation is reflected in the fact that it was not possible to compare all the caves in Serbia due to the lack of web presentations. In terms of comparing caves in Serbia and Postojna Cave, the difference is primarily reflected in the level of development, tourist offer and cave management, which is another limitation of this study. Further research may include other caves in Serbia with a proposal of web presentations in relation to the offer of each cave individually.
Further steps towards modernization and improvement of show cave promotion quality in Serbia should include strengthening of speleotouristic presentations on the Internet. The Internet is a key factor in the development of quality tourism promotion and therefore, focused efforts should be made to develop the competitiveness of the explored caves. In this way, the recognition of caves and tourist affirmations can be achieved which creates economic and social sustainability for present and future generations.
Better promotion of the caves would bring management teams positive economic results while improving information content and enhancing the tourist experience for tourists. Particular attention should be paid to: 1. Es tablishment of an organization that would promote the caves through educational and tourism content; 2. Opening an account on all popular social media in order to actively engage in the popularization of caves for tourism purposes; 3. Actively set up discounts and opportunities for winning free tickets and, thus, attract more tourists; 4. Conduct intersectoral cooperation with local tourist organizations, national institutions and scientific institutes; 5. Constantly improve the tourist infrastructure and nurture the e cosystem of the speleological environment.

Conclusion
The conducted evaluation indicates the importance of quality promotion required by the management and marketing teams of show caves in Serbia in order to achieve sustainable development of speleotourism. The evaluation analysis revealed large differences between the promotional results of Serbia and Slovenia. Postojna Cave has extremely high marketing results, while caves in Serbia have negative results. This is an extremely important indicator when it comes to the Resava Cave management issues, as this show cave has the greatest potential for further development of speleotourism in Serbia. The existence of the Ceremošnja Cave website is certainly an advantage, but the lack of good promotional qualit y and the poor management structure have a bad impact on tourism development. Therefore, a small number of tourists know and visit this show cave. It is necessary to create official websites for all tourist caves in Serbia, for their position on the touris t market to be more significant. In addition, the existing websites should be improved according to the existing modern trends in the promotion of speleotourism.
Show Cave Websites can significantly change the tourist identity of the caves and crucially affect the image of the destination. For that reason, it is necessary to carefully implement marketing measures in order to attract as many tourists as possible, promote science and education, as well as create a sustainable form of tourism development.