The majority of the Korean tourist industry is supported by domestic tourism. Thanks to the country's extensive network of trains and buses, most of the country lies within a day's round trip of any major city. International tourists come primarily from nearby countries in Asia. Japan, China, Hong Kong and Taiwan together account for roughly 75% of the total number of international tourists. In addition, the Korean Wave has brought increasing numbers of tourists from Southeast Asia and India. The Korea Tourism Organization (KTO) is targeting 100,000 arrivals from India in 2013.
International tourists typically enter the country through Incheon International Airport, near Seoul, which was found to be the world's best airport in 2006. Also international airports in Busan and Jeju are frequently used.