You can take your workout out of the gym and into the fresh air at Ttukseom Hangang Park. It's the ideal place to do a few pushups, crunches or even some yoga.
Situated in Gwangjin-gu, this outdoor sports and fitness area is worth including in your schedule. But you'll find loads more to discover in this area. Gyeongbokgung Palace, Dongdaemun History and Culture Park, and National Museum of Korea aren't too far away from Ttukseom Hangang Park.