This is the best choice for family and exchange students. Near here there are many attractions. Lotte world, Children grand park, Han river park, Seoul forest, Coex.. and so on. Within 10min there are Konkuk Univ, Hanyang Univ, Sejong Univ, I'm operating the tripwith travel company for foreign students. You can use a metro line 2(circle line) and line 7.