Opening
Bukhansan National Park is the closest mountain hiking spot to Seoul—literally in the city’s backyard—and I’d say it’s worth a visit if you’re not expecting solitude or pristine wilderness. It’s crowded, especially on weekends. Really crowded. But the trails are well-maintained, the elevation gain is manageable even for casual hikers, and you can genuinely feel like you’ve escaped Seoul while still being 30 minutes from the subway. I’ve been here maybe five or six times over the past three years, and I keep coming back because sometimes you just need a quick hit of nature without taking a full day trip.
Getting There
Subway Route
Take Line 3 from downtown Seoul toward Gireum Station. Exit at Gireum Station (Line 3, Exit 1 or 2), then transfer to Bus 120 or 120-1. The bus costs 1,450 KRW and takes about 15-20 minutes depending on traffic and which trailhead you’re heading to. The whole journey from, say, Myeongdong takes roughly 50 minutes to an hour. Google Maps will tell you this, but it won’t tell you that if you get on Bus 120-1 instead of 120, you’ll end up at a different parking area—120-1 is actually more convenient if you’re doing the Baegundae trail (the most popular hike).
Alternatively, you can take Bus 104 or 105 from Myeongdong or other central areas, but that’s slower and less reliable. I’d stick with the subway-plus-bus method unless you’re already in Gireum.
Entry Fee
Here’s the thing nobody mentions: there’s no entry fee for the park itself. It’s free. You just show up. There’s a parking fee if you drive (4,000-5,000 KRW depending on the lot), but that doesn’t apply if you take the bus.
What to Do / See
Baegundae Trail (The Main Event)
This is the iconic hike everyone does. Baegundae is a rocky peak at 836 meters, and the trail from the Gireum entrance is about 3.2 km, taking roughly 2-2.5 hours up. The path is steep toward the end—pretty much all granite and chain-assisted climbing in the final section. It gets legitimately crowded on weekends; I’ve waited in actual lines behind other hikers to clip into chains. If you go on a Saturday or Sunday in autumn (September-November), expect hundreds of people. I went in early October a couple years ago and there were easily 500+ people on the mountain. Go on a weekday morning if you can, ideally by 8 AM.
The views from the top are decent but not mind-blowing. You can see the whole city sprawled out in the haze. On clear days it’s nice. On most days it’s… okay. The real reward is just moving your body and getting outside, if I’m being honest.
Entry fee: free. But the trail can get muddy and slippery, so proper shoes matter. I wore runners once—don’t do that.
Samgaksan Trail (The Alternative)
If you want to avoid the worst of the crowds, try the Samgaksan trail instead, which connects to Baegundae but is less direct and slightly less popular. It’s about 4.3 km and takes 3-3.5 hours total if you’re doing the loop. Still gets crowded, but marginally fewer people. The peak at Samgaksan is 1,095 meters and actually offers better views than Baegundae. I prefer this hike, though it’s a bit more of a commitment.
Bukhansan Peak (The Real Deal)
If you’re genuinely interested in hiking and not just checking a box, do the longer loop to Bukhansan Peak itself (1,102 meters). It’s 6-7 km and takes 4-5 hours depending on your fitness. This isn’t hard, but it is legitimately a half-day commitment. Fewer tourists go this far. The peak has a small temple (Bukhansanseong fortress) and feels more remote even though you’re still technically in Seoul city limits. I did this in March and it was perfect—quieter, more meditation than Instagram-op.
What Disappointed Me
The “natural waterfall” everyone mentions (Sukjangbong Waterfall) is kind of underwhelming unless it’s been raining recently. I hiked to it on a dry day and it was basically a trickle. Don’t plan your whole day around seeing it.
Where to Eat / Practical Tips
Mountain Restaurants
There are a couple of small restaurants at the base near the Gireum parking area serving ramyeon and kimbap. Nothing fancy. They charge tourist prices (around 8,000-10,000 KRW for noodles). I usually just bring a sandwich and water. The Korean hikers all bring packed lunches from home—follow their lead. You can refill water at fountains near the entrance and at a few spots on the trail.
After-Hike Spots
After hiking, most people hit the convenience stores or restaurants in the area near Gireum Station or back toward central Seoul. Nothing special nearby. I usually just head back home or grab food somewhere central. Gireum Station area is pretty unremarkable for dining.
What to Bring
Proper hiking boots or trail runners, not street shoes. A small backpack. Water (at least 1.5 liters). Sunscreen—the sun reflects off granite. A light rain jacket even if the forecast says clear; mountain weather changes fast. Insect repellent in summer and early fall.
Crowds & Timing
Weekday mornings are infinitely better than weekends. Spring (April-May) and autumn (September-October) are peak seasons. Winter can actually be beautiful if there’s no snow, and summer is humid and buggy but doable early in the morning. Avoid Chuseok and any major Korean holiday unless you enjoy crowds as a lifestyle choice.
Honest Take
Do this hike if you live in Seoul and haven’t yet, or if you want a genuine quick escape without planning a whole day trip. Skip it if you’ve hiked mountains anywhere else in Korea or beyond—the trails here are more crowded social event than actual hiking. The mountain itself is fine. The experience of being surrounded by hundreds of other people on a narrow granite ridge is… less fine. Best time to go is a Tuesday or Wednesday morning in late April or October. One thing I wish I’d known: bring trekking poles. The descent is harder on your knees than the climb, and half the people you see coming down will be moving slowly with sore legs. I didn’t use poles my first time and regretted it. Also, the forecast can be deceptively sunny at ground level—it’s colder and windier at 800+ meters, so layer up even if it seems warm when you start.