Tourism is an important economic sector for most developed countries in the world. The mechanisms occurring in Poland's modern tourist market are similar to those that are shaping international tourism. The economic effects of tourism as well as the environmental and social determinants of its development are noticeable both in the regional and global scale of the economic sphere. In 1950 the number of arrivals was 25.3 million, while in 2011 this number increased by 980 million. It is estimated that this number may increase by 1.56 billion by 2020. The aim of the survey presented in this paper is to identify the factors that affect the development of inbound tourism to the Pomerania Province in relation to the domestic tourist traffic after 2009. In order to achieve this aim, the following method has been used: analysis of literature and source materials containing data on the level and dynamics of tourist inbound traffic to Poland, with particular consideration of the Pomerania Province. The social and economic policy of the Pomerania Province has been assessed based on the analysis of the Province's strategy documents setting its social and economic directions of operation by 2020. It has been found that not only megatrends but also factors shaped by the regional social and economic policy have a dominant influence on the development and growth of inbound tourism to the Pomerania Province. An increase in the number of accommodation and improvement of accommodation standards are factors stimulating foreign travels to Poland through Gdańsk. The parallel influence of supply-related factors and factors creating an increase in demand makes that tourism development, due to favourable regional policy, is becoming an important determinant of the social and economic position of the Pomerania Province at domestic and international level.