Asan

Asan (Korean: 아산; Korean pronunciation:) is a city in South Chungcheong Province, South Korea. It borders the Seoul Capital Area to the north. Asan has a population of approximately 400,000.

Asan is known for its many hot springs and is a city of spas.

Asan has grown into the neighboring village, Onyang-dong, which is also known for its hot springs.