Update: The edition described in this guide took place on September 28, 2025, and registration for that edition has closed. This guide stays online as a reference for runners planning ahead. Please check the official website for the latest schedule.
๐ Event Overview
Theย 2025 Seosan Cosmos Golden Field Marathonย is one of South Koreaโs most picturesque autumn running events, scheduled forย September 28, 2025. Hosted atย Seosan Sports Theme Parkย in Seosan city, South Chungcheong Province, this marathon attracts thousands of runners each year who come to experience running amidst the golden hues of blooming cosmos fields โ a symbolic flower of autumn in Korea.
The marathon serves both competitive and recreational runners, offering multiple race categories suited to varying levels of fitness and experience. Organizers emphasize not only the sporting challenge but also the celebration of nature and local culture, making the event a unique blend of sports, tourism, and community spirit.
๐ Race Categories & Details
The marathon features three main race distances, each with tailored specifications to ensure a well-organized and enjoyable experience for all participants:
1. Half Marathon (21.1km)
Entry Fee:ย 45,000 KRW
Time Limit:ย 3 hours
Timing Chip:ย Provided for accurate race timing
Key Features:ย Demanding yet scenic, this course takes runners deeper into the cosmos fields, offering panoramic views that make every step memorable.
2. 10km Course
Entry Fee:ย 45,000 KRW
Time Limit:ย 2 hours
Timing Chip:ย Provided
Highlights:ย Ideal for intermediate runners who want a casual race with competitive spirit and stunning scenery.
3. 5km Course
Entry Fee:ย 25,000 KRW (Special 20,000 KRW rate for Seosan residents)
Time Limit:ย 1 hour
Timing Chip:ย Not included
Best for:ย Beginners, families, or casual runners who want a fun, shorter course surrounded by the beauty of the cosmos blooms.
All participants receive an official race bib, and there are special discounts and additional benefits for Seosan residents in the 5km race, encouraging local community engagement.

๐บ๏ธ Course Information
The race starts and finishes at theย Seosan Sports Theme Park, which acts as the central hub for registration, warm-ups, and post-race festivities. The routes wind through vast fields planted with cosmos flowers, which are at their golden peak during the event period.
The paths coverย rural roadsย interspersed with panoramic farmlands, traditional village landscapes, and natural beauty.
Each course is clearly marked to help runners navigate smoothly.
Hydration stations are strategically positioned every 3-5 kilometers, staffed by volunteers providing water and energy drinks.
Medical tents with first-aid staff are set up at both start/finish lines and along the course for quick response.
The courses are closed to traffic during the races, ensuring runner safety.
The unique combination of a rural Korean landscape with well-managed race logistics makes this marathon stand out from urban road races.
๐ Awards & Event Highlights
Recognition and rewards serve as strong motivators and community builders in the Seosan Cosmos Marathon.
Top Finisher Awards:ย Prizes are given to the top three male and female finishers in each category: 5km, 10km, and half marathon.
Finishersโ Gifts:ย All finishers receive commemorative items such as specially designed medals, T-shirts with the marathon logo, and sometimes branded running shoes depending on participation category and sponsorship.
Lucky Draws:ย Runners have a chance to win prizes in lottery draws held at the event, including sports gear, local specialty goods, and event exclusive memorabilia.
Cultural Programs:ย The marathon venue hosts traditional Korean performances, local artisan stalls, and food markets, enriching the event atmosphere and celebrating Seosanโs culture.
Special Benefits for Seosan Citizens:ย These can include discounted registration fees, priority bib collection, and exclusive local souvenirs.
๐ How to Register
Race registration is fully conducted online to facilitate easy access and streamline the process.
Registration Period:ย March 14 to September 8, 2025.
Participants must create a profile on the official event registration portal and select their preferred race category.
Payment is accepted via credit card or Korean mobile payment platforms.
Confirmation emails with bib collection details are sent upon completion.
Bib collection is conducted on-site during designated days before race day.
Race day registration is not accepted to ensure smooth race operations and accurate participant management.
Participants are advised to check the eventโs updates regularly for any change in schedule or instructions.
Do you need help with registration?
Sports Event Korea can help overseas runners register for Korean races. Send a registration request
๐๏ธ Top Attractions Near the Venue
Enhance your marathon trip by exploring Seosanโs rich cultural and natural attractions located near the marathon grounds:
Haemieupseong Fortress
A historic Joseon-era fortress located close to the venue.
Well-preserved stone structures and scenic walking trails offer a glimpse into Korea’s military architecture.
Seasonal events and night illuminations attract visitors year-round.
Ganwolam Temple
Famous for its stunning sea views accessible via a tidal causeway.
A peaceful site perfect for reflection and capturing breathtaking photographs, especially during autumn sunset.
Seosan Birdland
An eco-friendly park beloved by birdwatchers.
Seasonal migratory birds make this an ideal spot to enjoy nature before or after the race.
Gaesimsa Temple
Located on a forested mountainside, ideal for gentle hiking and meditation.
Offers panoramic views over the Seosan countryside.
Samgilpo Port
Known for fresh seafood markets and casual waterside dining.
Visitors can sample local delicacies such as grilled shellfish and fresh fish dishes.
Beolcheonpo Beach
A tranquil beach destination nearby where runners can relax post-race.
Less crowded than tourist hotspots, perfect for beach walks and seaside leisure.
Seosan Market
A bustling traditional market where you can experience local flavors and buy specialty foods and crafts.
Ideal to immerse yourself into Korean foodie culture.
๐จ Accommodation Options
Several hotels near Seosan Sports Theme Park provide comfortable lodging and convenient access for marathon participants and their families:
Aria Hotel Seosan:ย Modern facilities and close proximity to the venue.
Vovo Hotel:ย Known for excellent service and spacious rooms.
Hotel 24st Prestige:ย Economical choice with clean, comfortable amenities.
Benikea Hotel Seosan:ย Popular among business travelers and tourists alike.
Brown Dot Hotel:ย Offers cozy rooms with a friendly atmosphere.
Booking early is recommended due to high demand during the marathon weekend. Many hotels provide special rates or shuttle services to the marathon site.
๐ Seosan Food Guide: Where to Eat
Runners and visitors can enjoy a diverse culinary experience in Seosan ranging from traditional Korean flavors to innovative fusion cuisine:
Kang Mee Roo:ย Specializes in Taiwanese-Korean fusion, renowned for rich, flavorful dishes.
Dobimaru:ย Offers authentic Korean meals with views overlooking rural landscapes.
Kaesong Bossam & Jokbal:ย Famous local spot for pork belly wraps and braised pigโs trotters.
Doore:ย Serves a blend of Asian and Korean specialties with modern twists.
Local Seafood at Samgilpo Port:ย Fresh grilled shellfish, squid, and other seafood delicacies are must-tries after a long day.
Local specialties vary seasonally, so this area is ideal for food enthusiasts looking to savor authentic regional tastes.
๐ More Races to Explore
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