IRONMAN Goseong 70.3

Last time updated: 23 April, 2025
IRONMAN Goseong:
IRONMAN Goseong:
IRONMAN Goseong 70.3

Description of the course

The IRONMAN Goseong 70.3 course, set in the picturesque South Korean city of Goseong, offers triathletes a challenging yet visually stunning experience. Renowned for its undulating hills, captivating coastline, and breath taking views of the East Sea, the course presents a unique blend of natural beauty and athletic rigor.

The triathlon commences with the swim leg at Danghangpo Beach, a charming bay in Goseong’s heart. Athletes embark on a one-loop swim, passing by notable landmarks such as the Goseong Dino Expo Park and the Seomjingang River. The waters here are typically calm and warm, providing a delightful swimming experience.

The bike segment is a single-loop course traversing Goseong’s diverse terrains. It begins with a scenic circuit around the city, featuring the prominent Mangsangdae Observatory and the picturesque Mangsangdae Cliffs. The route then extends to Goseong’s outskirts, offering sweeping views of the East Sea and the Seomjin River Valley. The journey includes a combination of open roads and scenic rural lanes, interspersed with a few short but challenging climbs.

Concluding the triathlon is a three-loop run through Goseong’s streets and its surrounding countryside. This segment is relatively flat, with a minor ascent near the finish line being the only significant elevation change. The course is lined with enthusiastic spectators, whose cheers provide a powerful surge of motivation for athletes as they make their final push towards the finish line.

Weather Conditions

In June, Goseong, Korea experiences warm and moderately humid weather conditions. The average high temperature for the month is around 25°C to 26°C (77°F to 78°F), while the average low temperature typically falls to about 17°C to 18°C (62°F to 64°F)​​​​. The climate is generally pleasant, making it a nice time to visit.

The region receives a moderate amount of rainfall in June, with an average of 7.6 inches of precipitation over approximately 6 days, indicating a relatively dry period compared to other months​​. This rainfall, combined with the warm temperatures, contributes to the humidity levels, which start to rise in the middle of the month.

The average water temperature of the East Sea in Goseong, South Korea in June is around 19°C (66°F).

Race statistics

IRONMAN Goseong / Athletes

IRONMAN Goseong / DNF, DNS, DQ, NC

IRONMAN Goseong / Gender

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