Ulsan is a city in South Gyeongsang and the capital of the Ulsan Metropolitan District. With a population of 1.2 million it is close to Busan, Gyeongju, Daegu and Pohang. The city is known for its whaling heritage and more recently as the industrial heart of the country. The airport code is USN.
Ulsan is not frequented by tourists but has a sizable foreign population - a mixture of engineers, migrant workers and English teachers.