Tourism in South Korea and its industry caters to both foreign and domestic tourists. In 2019, 17.5 million foreign tourists visited South Korea, making it the 20th most visited country in the world. Most non-Korean tourists come from other parts of East Asia such as Japan, mainland China, Taiwan, and Hong Kong. The recent popularity of Korean popular culture, often known as the "Korean Wave", in these countries has increased tourist arrivals.

Cheonggyecheon is a 10.9-kilometre-long (6.8 mi) stream and public space in downtown Seoul, South Korea. A natural stream sourced from the Suseongdong Valley in Inwangsan, it was historically maintained as part of Seoul's early sewerage until the mid-20th century, when post-Korean War rapid economic development and deteriorating conditions prompted the filling of the stream with concrete and the construction of an elevated freeway, the Cheonggye Expressway, in its place. In 2003, the city government began an urban renewal project to disassemble the expressway and restore the stream, which was completed in 2005 at a cost of over ₩386 billion.