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The country's economy can be focused on the development of primary industries or innovation, the growth of which is based on the development of knowledge-intensive industries using information technology. The large-scale development of Internet technologies has made it possible to develop a model of network management of the economy. This also applies to the business of companies in the field of tourism and service. The widespread use of information technology will improve the competitiveness of companies and reach a new level of development. The article identified a range of issues for management in the organization of tourism and hospitality for the effective use of Internet technologies and e-commerce. The article deals with the use of software tools for analyzing incoming information, multimedia content and infrastructural public networks HTML, JavaScript, WWW, information-distributed infrastructure EDI, E-mail, HTTP, architecture of the e-commerce system, the scheme of automated formation of the educational process. The professional competencies of students of secondary vocational education, higher education and the system of additional professional training in the field of tourism and service should include knowledge, skills and abilities in organizing e-commerce using modern information technologies. The article considers the stages of using Internet technologies and e-commerce technologies, approaches to organizing these processes in tourist organizations and hotels. Continuous education in the field of e-commerce using information technology will allow developing the modern tourism and hospitality market at a high information level, improve the information literacy of sales specialists and managers of tourist organizations and hotels.

After the collapse of the Soviet Union, the centralized system of organizing tourism, excursion activities, hotel services, coastal sea passenger traffic ceased to exist. The company "Yalta Travel and Excursion Bureau",which organized excursions around the Crimea at the highest level, and also trained qualified guides, was closed. With the collapse of the all-Union system "Intourist", the training of highly qualified personnel of guide-interpreters with professional knowledge of foreign languages has practically ceased. The Yalta commercial seaport has practically lost the function of the main organizer of sea coastal and intercity passenger transportation (until 1991, about 40 passenger boats of the port operated during summer navigation. In the past, in 2020, there were only three ships). Private companies began to enter the market, which in the process of conquering market segments and competition have lost many achievements in tourism and excursion activities (including maritime ones). Today, many coastal passenger excursion routes are forgotten. Nevertheless, today's opportunities for organizing sea travel have significant potential.

The paper deals with some issues related to the study of the potential use of new types of high-speed passenger ships for the organization of maritime passenger traffic between the ports of the Black Sea. In addition, a project was proposed for organizing excursion passenger lines between the Black Sea and Mediterranean ports, as well as tours along the coastline. Recently, special attention has been paid to the development of sea tourism in the Black Sea. However, for the organization of this type of tourist activity, it is important to understand the possibilities of using special types of marine passenger ships developed by domestic designers. The implementation of design ideas in the very near future will make it possible to organize highly efficient maritime liner and cruise communications on the Black Sea.

The paper is devoted to the study of the dynamics and stability of the coast. The seaside territories are an active geodynamic system, which,being at the junction of the land and sea systems, has a high rate of change(transformation) processes. Relevance of the topic due to the economic value of the shores and a huge in-crease in anthropogenic load on them. A dynamic simulation model is presented to calculate the optimal amount of beachforming material to be maintained on the beach. The studies carried out made it possible to significantly clarify the ideas about the hydro- and lithodynamic processes occurring in the coastal zone of the beach. The influence of the parameters of waves and sediments that make up the beaches on such morphometric characteristics of the surf zone, which are important for the practice of marine coastal protection, such as the length and height of the wave run-up, the depth at the point of their collapse, is shown.