The Muuido Hidden Trails International Trailrun is a high-performance mountain running event scheduled for Sunday, May 10, 2026, on Muui Island (Muuido) in Incheon, South Korea. Often referred to as "Hidden Trails" due to its technical and lesser-known mountain paths, the race attracts international athletes and local trail running enthusiasts. The event is characterized by significant vertical gain for its distances, challenging runners with steep ascents and descents across the island's rocky peaks. As a sanctioned international event, it provides a competitive platform for runners to test their endurance against a backdrop of panoramic Yellow Sea views and dense coastal forests.
| Race Distance | Elevation Gain (D+) | Terrain Type | Difficulty |
|---|---|---|---|
| 25 km | 1,209 m | Technical Mountain Path | High (Advanced) |
| 12 km | 485 m | Forested Trail & Coast | Moderate (Intermediate) |
Jung-gu, Incheon is a diverse district with a population of approximately 150,000 residents, encompassing both the ultra-modern Incheon International Airport and traditional islands like Muuido. Muuido itself maintains a peaceful, rural atmosphere with a demographic leaning toward tourism and maritime industries. The island’s geography is rugged, dominated by the Horyonggoksan and Guksabong peaks. The race course is particularly demanding due to the "sawtooth" elevation profile, where runners face constant elevation changes on narrow, single-track paths. The coastal location ensures a humid maritime climate, and the trails often consist of a mix of granite stairs, pine needle paths, and coastal boardwalks that require precise footwork and agility.
Registration for the 2026 edition is currently available through the official portal, with a focus on sustainable race management and "Leave No Trace" principles. Participants are encouraged to utilize local parking and accommodation facilities in the Jung-gu area, as island access can be limited during peak event hours. The event is supported by international trail running organizations, ensuring standardized timing and safety protocols. For detailed GPX files and specific mandatory gear lists, participants should visit the official website or the Running Around event database.
May 10, 2026
Distance — 12K
Type — Running
07:30
$34.00
May 10, 2026
Distance — 25K
Type — Running
07:30
$47.50
These values represent the 3-year monthly averages for May in Incheon.
Learn more about the host city, Incheon.
Incheon is a city in South Korea on the coast directly bordering the west of Seoul. It is a rapidly expanding centre for new urban development. Several beautiful islands, such as Yeongjong Island and Ganghwa Island, are also within city limits.
Read more launchWatch highlights and course previews from previous years.
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