If you look at a Korean trail map you will keep meeting a word that has no clean English equivalent: dulle-gil (둘레길). It is usually translated as “trail”, which loses the entire point. Dulle means circumference or perimeter, and gil means path. A dulle-gil goes around something rather than up it.
Once you understand the format, a lot of Korean walking makes sense — including why a country this mountainous has so many trails that barely climb.
The idea: keep the height, lose the climb
A summit route is simple to describe. You start low, you go up, you come back. A dulle-gil instead holds a roughly constant contour and wraps around the mountain, or follows a coastline, or traces a wall. You still spend the day among ridges and forest. You just never commit to the top.
That single design choice produces a chain of consequences:
- The gradient stays mild. There are undulations, but no sustained climb and no rock scrambling.
- It is divisible. Because the path stays at village height, it crosses roads, passes bus stops and runs into subway stations. You can walk one hour or six.
- It goes through places, not past them. Temples, fishing harbours, old neighbourhoods, markets and cemeteries are on the route rather than avoided by it.
- It is walkable in ordinary shoes for most of its length.
- There is no summit to miss. Turning back early is not a failure, because there was never a single objective.
Where the format came from
The modern dulle-gil boom began in the late 2000s. Jirisan Dulle-gil, a long route circling Korea’s largest mainland massif, popularised the idea that a national park could be experienced from its skirts rather than its peaks. Jeju’s Olle-gil coastal paths did something similar on the island. Within a few years almost every Korean city had laid out its own version, usually stitched together from existing village paths, forest roads and old coastal tracks.
Two of those city networks are the ones a visitor is most likely to walk:
- Galmaetgil in Busan — 278.8 km, nine courses, mostly coastal.
- The Seoul City Wall Trail — 18.6 km following a six-hundred-year-old wall over four small mountains.
- Bukhansan Dulle-gil — a ring around the base of Seoul’s biggest national park, for the park scenery without the granite.
Four kinds of dulle-gil
Busan’s official classification is a useful way to think about the whole category, because most Korean networks mix the same four terrain types:
| Type | Character | Suits |
|---|---|---|
| Coastal (해안길) | Sea-level, flat, exposed, often on boardwalk or headland path | Hot days, easy pace, photography |
| Forest (숲길) | Shaded, rolling, contouring around a mountain | Summer, quiet walking |
| Riverside (강변길) | Flat, wide, frequently cyclable | Long easy distance |
| Urban (도심길) | Markets, old quarters, city wall | Short time, bad weather, sightseeing |
How to actually walk one
The mental adjustment is the hard part. Visitors tend to arrive with a summit mindset — pick a peak, plan the ascent, measure the day by whether you reached it. A dulle-gil asks for something looser.
- Pick a section, not a route. Networks are numbered precisely so that you can take one piece.
- Start from the end you can reach by public transport and walk towards the other end, which will also have transport.
- Follow the ribbons and arrows. Korean networks are waymarked with coloured tape on branches, painted arrows and small plaques. Signage is dense but rarely in English — the marker colour matters more than the text.
- Decide the finish while walking. Every road crossing is a legitimate stopping point.
Offline maps are worth downloading. Korean mapping apps have far better trail coverage than the international ones, and mobile signal on the ridges is good almost everywhere.
Why it suits a short trip
Most visitors are not in Korea to hike. They are here for a week, with commitments on some days and gaps on others. A summit route demands a whole day and reasonable fitness. A dulle-gil section asks for a morning and ordinary shoes, and you can change your mind halfway.
It also happens to be the format that works when you are not at full strength — jet-lagged, on the day after a long flight, or taking it easy for any other reason. The gradient is gentle, the exit points are frequent, and there is shade on forest sections and sea breeze on coastal ones.
Where to go next
- Hiking in Korea — low mountains, day hikes, and how the whole system fits together
- Galmaetgil, Busan’s coastal network
- The Seoul City Wall Trail
- Day hikes in Seoul — Bukhansan, Inwangsan and Gwanaksan
In an emergency
Korea has two emergency numbers, and both answer in English.
- 119 — fire, rescue and ambulance. This is the one to call for an injury on a trail.
- 112 — police.
Korean trails carry numbered rescue markers — small posts with a code on them. Reading that code to the operator locates you far faster than describing the scenery. Note the last one you passed.
Mobile coverage is good on almost all the routes described here, including the ridges.
Route layouts and waymarking are revised periodically by the managing authorities. Check the current official route before setting out.
Closures are the thing worth checking
Korean trails close, and not only for weather. National park ridgelines shut during the spring and autumn fire-risk periods, coastal sections close for construction or erosion, and some routes run on fixed opening hours rather than dawn to dusk. These are published by the managing authority and almost never by the blogs describing the walk.
Distances and difficulty ratings are worth taking from the official course data too. The national walking trail portal publishes track files and an assigned difficulty grade, which is a steadier basis for planning a day than someone else’s impression of how hard it felt.