Korea is 80 ~ 90 % mountain places. There are 5 long rivers in korea as well. There are 5 main cities in South Korea, Daegu, Busan, Seoul, Incheon, Gwangju. Korea is surrounded by 3 seas, so there are number of coastlines and beautiful beaches, haeundae is one of the most beautiful beaches that korea people want to go on vacation.
Korea has big one island , which called JeJu iland.