At UltraNomades, we spent six weeks trail running in and around Seoul, discovering a city where subway-accessible hikes lead to granite peaks, pine forests, and historic fortress walls. From the technical climbs of Bukhansan National Park to the peaceful loops around Namsan and the panoramic ridges of the Seoul City Wall, every run revealed a new layer of Korea’s natural and cultural richness. We joined a local trail race just outside the city—proof that mountains surround Seoul—and met passionate runners like Jay and Mindy, who shared insights into Korean running culture. Through local clubs and weekend meetups, we discovered a vibrant community, even if language sometimes created distance. Whether training on open stadium tracks, running along the Han River, or exploring the Seoul Dulle-gil trail network, we found that nature in Seoul is never far. This city is a true trail running paradise, where adventure begins with a metro card and leads to summits.