**5. Limitations**

There are some limitations to this study. Firstly, this study investigated problems related to tourist travel behaviour from an environmental and organisational perspective. However, due to space limitations, this study only considered some of the problems. Future research would need to consider the deeper problems and identify the two groups of respondents based on income level, place of residence and other. The selection of respondents, at the beginning of the study, was random (every tenth person in face-to-face surveys). Unfortunately, this certainty does not exist in the case of Internet-based surveys, especially those conducted in Russia. Changes in research technique were forced by the pandemic. In the case of Poland, there were relatively few cases, as it was only a matter of completing the study, which started in 2019. In contrast, the other partners, including Russia, struggled by starting their research a little later, which was influenced, among other things, by the tourist season, which in Poland occurs in summer and in Russia in winter. Due to this situation, the research continued online, which may have distorted the results, including the profile of a tourist in Russia. It is currently difficult to trace the profile of respondents, as it would be necessary to complete the data on respondents in Russia and then provide a comparison in a table. At present, the war triggered by Russia in Ukraine and the embargo imposed by many democratic countries on the Russian aggressor are hindering this. Secondly, other potential variables could be included in future studies, for example, tourism and transport company competition and regional cooperation.

**Funding:** The research has been financed by the Interreg Baltic Sea Region Program, contract number 100#, within the project of MARA Mobility and Accessibility in Rural Areas—New approaches for developing mobility concepts in remote areas.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Not applicable.

**Conflicts of Interest:** The author declares no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
