The Taebaek and Sobaek Mountains are the two main mountain ranges on the Korean continent; Taebaek forms the eastern ridge of the peninsula, and Sobaek trends southwest from it.
The Han and Nakdong Rivers - two of South Korea's main rivers - originate in these mountains.
There are over 3000 small islands off the coasts of South Korea, the largest being Jeju Island, a popular tourist destination.
South Korea has a temperate climate, which means heavy rainfall in the summer and cold, snowy winters. Monsoon months are June and July, and the average temperature during the summer in Seoul, is 72 to 85 F and 21 to 35 F in the winter.