Run In Bundang Started With a Walk Along Tancheon River

A Walk That Became Something More

Before the early-morning intervals, before the weekend trail missions into the hills surrounding Seoul, before a community of around 300 runners gathered under a shared identity, there was a simple idea: go for a walk along the Tancheon. Minwoo Choi, the founder of Run In Bundang, launched the crew in January 2018 not as a running group but as something far more modest. He called it "Walking in Tancheon," an open invitation for people in Bundang to slow down, step outside, and share some time along the river that threads through the district before stretching north all the way into the heart of Seoul. The Tancheon is one of those urban waterways that locals pass daily without ever truly seeing. Minwoo saw it differently. He saw it as a gathering place, a reason to get outside, and a thread connecting his neighbourhood to a larger city. The early days were unhurried by design. People would join, fall into step with one another, and simply talk. There was no pace group, no training plan, no sign-up sheet beyond showing up. The river path offered just enough structure: a clear starting point, a familiar stretch of greenway, and an open invitation to whoever wanted to come along. That looseness turned out to be exactly what Bundang's young residents were looking for. Membership grew steadily. Then it kept growing. By the time the group crossed a hundred members, something had shifted in the way people were moving. The walks had quietly, almost naturally, turned into runs. The crew recognised what was happening and leaned into it. Walking in Tancheon became Run In Bundang, and the energy that had drawn people to the river found a new outlet in the rhythm of running shoes on pavement.

The Tancheon and the City Around It

To understand Run In Bundang, it helps to understand Bundang itself. The district sits within Seongnam-si, a city in Gyeonggi Province that borders the southern edge of Seoul. Bundang was developed in the early 1990s as one of South Korea's first planned satellite cities, designed to absorb the overflow of a capital that never quite stops expanding. It is a place with wide roads, orderly apartment complexes, and an unusually high concentration of young professionals and families who came here for the space and stayed for the community. The Tancheon river corridor that runs through it is one of the district's defining features: a long, flat greenway popular with cyclists, joggers, and families out for weekend strolls. For a running crew, the Tancheon is both a blessing and a starting point. It offers easy access, consistent footing, and a route that connects Bundang to the broader urban landscape of greater Seoul. But the mountains and trails that ring Seongnam-si offer something the flat riverway cannot: elevation, variety, and the particular satisfaction of climbing somewhere. Run In Bundang has made full use of both. The river is a daily companion. The hills are where the crew goes when the week opens up and the legs want something harder.

Trails, Hills, and Kyung Duck's Influence

The trail chapter of Run In Bundang's story has its own beginning. In January 2019, exactly one year after the crew was founded, Kyung Duck joined the group. His arrival brought trail running into the crew's regular rotation in a meaningful way. Weekend sessions began to include routes that climbed away from the city and into the greener, rougher terrain around Seongnam-si and Seoul. The mountains of the greater Seoul metropolitan area are remarkably accessible for a capital city: peaks like Gwanaksan, Cheonggyesan, and Buramsan sit within reach of most Bundang residents, and the trail networks connecting them reward the effort of getting there. Trail running asks something different of a runner than road running does. It demands attention, a willingness to slow down on technical sections, and a tolerance for mud, roots, and uneven ground. It also rewards those things with a kind of scenery and solitude that road running rarely offers. For Run In Bundang, the shift toward trails did not replace the road running culture that had grown from the Tancheon walks. It added another dimension to it. The crew now moves across all kinds of terrain, urban and natural, flat and steep, through the same spirit of collective movement that Minwoo first brought to the riverbank in 2018.

Every Day, Morning and Evening

What distinguishes Run In Bundang in practical terms is the frequency of its runs. The crew runs every day. Not once a week, not every other weekend, but daily, with sessions in the morning and in the evening. For a crew of around 300 members, that rhythm creates a different kind of community than the weekly meetup model. On any given day, some subset of the crew is out on the Tancheon path or the roads of Bundang, which means there is almost always someone to run with and almost always a reason to lace up. The consistency of it becomes self-reinforcing. If you miss a Tuesday morning, there is a Tuesday evening. If you miss the week entirely, the following Monday is already waiting. The base of operations is Hwangsaewool Park, a green space in Bundang that gives the crew a reliable and familiar meeting point. Parks serve a particular function in South Korean urban life: they are the common ground between the density of apartment living and the need for open space, and they tend to draw the same faces at the same hours with a regularity that builds recognition and trust. Hwangsaewool Park has become that kind of anchor for Run In Bundang. It is where mornings begin and evenings wind down, where new members show up for the first time and regulars return out of habit and affection.

A Leadership Team Built Over Time

Run In Bundang today is guided by a team of captains who grew into their roles alongside the crew itself. Sungwoo and Gahyun serve as captains, joined by Kayung, Kyung Duck, and Soeun. Minwoo remains the crew's founder and the person whose original instinct to gather people along a river set everything in motion. That the leadership has expanded and distributed itself across multiple captains says something about how the crew has scaled without losing its original character. A group of 300 runners cannot be held together by one person's energy alone. It requires people who are genuinely invested in the community, who show up not just to run but to make it easier for others to show up too. The captains of Run In Bundang have built a culture that carries the ethos Minwoo established at the start: low barriers, high frequency, and a consistent focus on running as something enjoyable rather than something punishing. The crew does not advertise itself through performance metrics or race finishes. Its identity is simpler than that and more durable. Run for fun. The hashtag the crew uses, #RUNFORFUN, is not a slogan layered onto a more complicated message. It is the message.

What It Means to Run in Bundang

Run In Bundang holds a specific place in the history of its city. When Minwoo started the group in 2018, it was the first running crew in Bundang oriented toward young runners. That distinction matters not because it is a competitive achievement but because it reflects what the crew actually did: it created something that had not existed before, filled a gap that many people probably did not know they were feeling, and sustained it long enough for it to become part of the fabric of how young people in Bundang move and connect. Seven years on, the crew sits at around 300 members and continues to run daily, continues to climb trails on weekends, and continues to welcome new people through the same open door that Minwoo opened along the Tancheon in January 2018. The river is still there, still flowing north toward Seoul, still one of the most reliable places in the district to find someone from Run In Bundang moving through the early morning light or the cooler hours of an evening. If you are in Bundang and you want to run, the crew is not hard to find. Head to Hwangsaewool Park. Look for the people who are clearly enjoying themselves. That is usually how it starts. You can learn more about the crew through their Naver cafe page or follow along on Instagram.