Finding something to do for Christmas in Seoul can be daunting. Especially if you put off making reservations for a dinner. I actually didn’t end up doing any dinners this year. Instead a friend visited and it was their first time in Seoul so we went and saw the Seoul Christmas Festival, which started in early December and will continue until the second of January. It happens along Cheonggyecheon stream. The best way to get there is to take the subway to Gwanghwamun and leave via exit 5 which lets out near the plaza at the start of the stream where events are held.
I’m not sure how everything looks during the day or if there is anything of interest even around during the day. It is mostly lights. A large Christmas tree near the stage in the plaza and a tunnel of lights that you take down to the lower level of the stream where you can walk along and look at lights throughout. It’s really pretty but also very crowded. There are lines that lead through the light tunnel down the stream that you need to wait for and lines for a shipping container filled with mirrors and lights that is definitely worth the wait to walk through for some pretty pictures.