What type of tourism occurs outside the country of residency?

International tourism refers to travel that takes place outside of a person's country of residency. It involves crossing national borders to visit foreign countries for leisure, business, or other purposes. This type of tourism is characterized by the movement of people who are traveling to a destination that is not their home country, which allows them to experience different cultures, landscapes, and attractions.

In contrast, domestic tourism occurs within a person's own country, local tourism is generally confined to a specific area, and regional tourism pertains to travel within a larger geographical region that may encompass multiple localities or cities within the same country. Thus, international tourism distinctly denotes travel that transcends national boundaries, making it the correct choice in this context.