Hong Kong ("Fragrant Harbour"), officially known as Hong Kong Special Administrative Region of the People's Republic of China, is an autonomous territory on the southern coast of China at the Pearl River Estuary and the South China Sea. It is known for its skyline and deep natural harbour. It is a world-renowned shopping paradise, known for its tourist-friendly atmosphere and numerous options. The huge shopping malls of Central, Admiralty and the street fashion factory in Causeway Bay are reasons for many travelers to make their Hong Kong trips. Home to around 7.2 million Hongkongers and other nationalities, Hong Kong is one of the world's most densely populated regions!

Busan is South Korea's second largest metropolis after Seoul, with a population of around 3.6 million. It is the largest port city in South Korea and the fifth largest port in the world. The city is located on the southeasternmost tip of the Korean peninsula and faces the Korea Strait. The most densely built up areas of the city are situated in a number of narrow valleys between the Nakdong River and Suyeong River, with mountains separating some of the districts. Nampodong to the south is Busan's shopping and entertainment downtown, while central Seomyeon at the intersection of subway lines 1 and 2 is the main office building area. Between them are Busan's train station and its international ferry terminals. The beaches of Gwangalli, Haeundae and Songjeong lie to the east, the ruins of mountain fortress Geumjeong guard the north. To the west is Gimhae town where the Busan Airport is located.