Seoul is the only megacity on Earth where you can ride the subway to the foot of a granite peak, summit it before lunch, and be eating barbecue downtown by evening. Real mountains — not hills — ring the city on every side: an 836 m national-park summit to the north, cliff-top hermitages to the south, and 600-year-old fortress walls climbing the ridges in between. Entry is free, no permits needed, and every trailhead below is a short walk from a subway exit.
These are the 10 hikes we recommend to visitors. Use the 3D map: tap any trail card to zoom to it, switch on 3D terrain, then run your finger along the elevation profile — a marker moves along the trail on the map so you can see exactly where the climbing happens. Press “Fly this trail” for an aerial preview.
Drag to pan · scroll to zoom · right-drag (or two fingers) to tilt. Select a trail card, then hover the elevation profile below — the marker follows the route on the map. Trail lines follow OpenStreetMap GPS survey data; elevation profiles from 30 m satellite terrain data.
Bukhansan — Baegundae Peak
The hike every visitor should do once: a national park summit inside city limits. The final stretch is a bare granite dome climbed on steel cables bolted into the rock — then the whole of Seoul unrolls beneath the Korean flag at 836 m.
Inwangsan City Wall Trail
Follow the 600-year-old fortress wall up granite slopes to the best sunset view in Seoul — palaces, downtown towers and N Seoul Tower all in one frame. Shaman shrines cling to the rocks just off the path.
Achasan → Yongmasan Ridge
Seoul’s classic sunrise hike: gentle stairs to a long open ridge above the Han River, past the ruins of 1,500-year-old Goguryeo forts. Start and finish at different subway stations — no backtracking.
Ansan Jarak-gil Loop
A barrier-free cedar boardwalk circling an entire mountain through pine and metasequoia forest — the gentlest “real mountain” experience in the city, doable in sneakers, with skyline views over Seodaemun.
Bugaksan Fortress Trail
The most storied ridge in Seoul: a military zone closed to civilians for decades, now open along the old city wall. Look for the “1.21 pine tree” still carrying bullet holes from a 1968 commando raid. Closed Tuesdays; last entry mid-afternoon (seasonal).
Gwanaksan — Yeonjudae
A ridge of pink granite boulders — ropes and railings on the steep bits — ending at Yeonjudae, a hermitage perched impossibly on a cliff edge at 632 m. A hiking center by the station exit even rents boots and poles.
Dobongsan — Sinseondae
Bukhansan’s wilder sister: a skyline of rock spires that looks painted onto the sky from Line 1. Stone steps through a temple valley, then railings up to the Sinseondae viewpoint under the sheer face of Jaunbong.
Cheonggyesan — Maebong
The soft-ground antidote to Seoul’s granite: a shaded forest ridge of wooden steps south of Gangnam, beloved by locals for “forest bathing”. Steady climbing, zero scrambling, big view of the Lotte Tower from the top.
Suraksan
Silky granite slabs and rock ridges with a fraction of Bukhansan’s crowds. Ride Line 7 to its last stop and you’re at the trailhead — the summit panorama sweeps from Dobongsan’s spires across the whole northern city.
Buramsan
The quiet one. A short, punchy climb on Seoul’s northeastern edge with bare rock near the top and almost no foreign visitors — go on a weekday and you may have the 508 m summit to yourself.
All 10 trails at a glance
| Trail | Distance | Gain | Time | Level | Best for |
|---|---|---|---|---|---|
| Ansan Jarak-gil | 5.2 km loop | +200 m | 2–2.5 h | Easy | First hike, any fitness level |
| Achasan → Yongmasan | 5.4 km | +370 m | 3 h | Easy | Sunrise over the Han River |
| Inwangsan | 3.2 km | +300 m | 2 h | Moderate | Sunset + fortress wall |
| Bugaksan | 2.7 km | +250 m | 2.5 h | Moderate | Cold-War history on a ridge |
| Buramsan | 4.7 km | +460 m | 2.5–3 h | Moderate | Escaping the crowds |
| Cheonggyesan | 6.1 km | +540 m | 3.5 h | Moderate | Forest walking near Gangnam |
| Suraksan | 5.7 km | +600 m | 3.5 h | Challenging | Granite slabs, fewer people |
| Dobongsan | 9.6 km | +700 m | 5 h | Challenging | Dramatic rock spires |
| Gwanaksan | 7.8 km | +580 m | 4 h | Challenging | Cliff-edge hermitage |
| Bukhansan — Baegundae | 7.6 km | +770 m | 4–4.5 h | Challenging | The iconic summit |
Good to know
Hiking is Korea’s national pastime, and the trails show it: routes are heavily signposted, staircased on the steep sections, and dotted with numbered rescue-point markers (photograph the nearest one if you ever need to call 119). October is peak season for foliage, April–May for spring greens; summer is humid, so start early — and in winter the classic peaks are stunning but icy, so pick up ₩10,000–20,000 microspikes at any trailhead shop. Carry a liter of water and some kimbap from a convenience store; there is nothing for sale on the mountain. And keep the best tradition for the way down: trailhead villages, especially below Bukhansan and Dobongsan, are lined with restaurants serving makgeolli (rice wine) and pajeon (green-onion pancake) — the standard Korean reward for a summit.
FAQ
Do I need hiking boots?
For the easy and moderate trails, trainers with decent grip are fine. For Bukhansan, Dobongsan, Suraksan and Gwanaksan you’ll want proper grippy soles — the granite is polished smooth in places. Forgot yours? The Seoul Hiking Tourism Center at Gwanaksan Station Exit 1 rents boots, poles and even clothing.
Is it safe to hike alone?
Yes — these are among the busiest, best-marked trails in the world. On a weekend you’ll never be out of sight of other hikers. Phone signal works on every summit, trails carry numbered rescue markers, and 119 (fire/rescue) has English-speaking operators.
Which one first if I’m reasonably fit?
Bukhansan’s Baegundae. It’s the highest and most famous, the cable-assisted granite finale is unforgettable, and door-to-summit from a downtown hotel takes about two hours. Do Inwangsan the same evening for sunset if your legs forgive you.
Anything special about Bugaksan?
It sits behind the former presidential compound, so access is still managed: the trail closes every Tuesday and last entry is mid-afternoon (3–5 pm depending on season). Carry your passport just in case, stick to the path, and note that photography is restricted at some marked points.
When should I start for sunrise at Achasan?
Aim to be at the trailhead about an hour before sunrise with a headlamp — the stairs are straightforward in the dark, and the sunrise platform is roughly 40 minutes up. First trains on Line 5 reach Achasan Station around 5:30 am; in winter that’s early enough, in summer take a short taxi ride instead.
Landing in Seoul and heading straight for the mountains? Don’t haul your suitcase up a trailhead. We deliver your luggage from the airport to your hotel the same day — land, swap shoes, and be on a summit by afternoon. Prefer flat ground? See our guides to running in Seoul and Korea’s best bike travel routes.
