Although it's been a long time since this drama aired last year, I'm still in love with Do do sol sol la la sol and the beauty of the drama including its filming locations in Mokpo. I've written 2 travel guides for the dramas filming locations, so if you're looking for drama travel information it's best to read these:
Filming Locations for Do do sol sol la la sol- Mokpo, Korea
Filming Locations for Do do sol sol la la sol- Seoul, Korea
A media organisation in Mokpo recently compared the actual filming locations to how they were shown as the imaginary town of Eunpo in the drama and the comparison pictures are very cute and show a number of locations that I didn't necessarily include in my travel guides as they're just streets or carparks....however, I thought these pictures would since be interesting for drama fans :) I'm currently learning Korean so may translate the texts at a later date when my Korean improves!