When I Googled what it is like to live in Seoul in the spring I found a list which said that walking in Seoul is really common. It is easy to use public transportation and maybe not that common for foreigners to drive here. Perfect for me, I thought. And it is true. Many people walk and use the subway. With the all the hills and stairs we can then eat well with a good conscience.
A friend also sent me this video about walking in Seoul and South Korea overall: