Wonju Day Trip by Car: Sogumsan Bridge, Chiaksan & Gangwon Highland Drive

Wonju sits in southern Gangwon Province, about 120km east of Seoul, yet most travelers drive straight past it on their way to Sokcho or Gangneung. That's a mistake. The city is the gateway to Chiaksan National Park and home to Sogumsan — a dramatic rocky canyon with a suspension bridge that stretches 200 meters above the valley floor. It's one of the best day drives from Seoul that almost nobody talks about.

Getting to Wonju by Car

From Seoul, take Expressway 50 (Yeongdong Expressway) east toward Gangneung. The Wonju IC exit is about 120km from central Seoul — roughly 1 hour 30 minutes to 2 hours depending on traffic. Tolls run approximately 7,000–9,000 KRW each way. It's one of the easiest expressway drives from the capital, with wide roads and well-maintained rest stops.

If you're combining this with a longer Gangwon trip, Wonju makes an excellent first stop heading east before continuing to Pyeongchang, Gangneung, or the east coast. The city itself is large and navigable — a Korean-only GPS works fine but Naver Maps in English handles it well too.

Sogumsan: Korea's Most Dramatic Suspension Bridge

Sogumsan (소금산) is the undisputed highlight of Wonju. The park centers on a towering rocky gorge carved by the Seomgang River, and its headline attraction is the Sogumsan Ulleong Bridge — a 200-meter-long suspension bridge swaying 100 meters above the valley. When the bridge sways in the wind and you look straight down at the river and forest far below, it earns its name: ulleong means 'trembling.'

The hike to the bridge takes about 30–40 minutes from the main entrance. The trail climbs through forested ridges before reaching the canyon viewpoint and bridge crossing. After the bridge, continue to the Sogumsan Skywalk — a glass-floored platform jutting out over the gorge — and then loop back down. Allow 2–3 hours for the full circuit. Summer mornings are ideal before the afternoon heat.

• Hours: 9:00 AM – 6:00 PM (last entry 5:00 PM)
• Admission: 5,000 KRW adults, 3,000 KRW children
• Parking: Free at the main lot near the entrance
• Trail difficulty: Moderate — some steep sections, proper shoes recommended
• Sogumsan Grand Valley Resort: Full-day leisure complex next door with water park (separate fee)

Chiaksan National Park: Wonju's Mountain Backbone

Chiaksan National Park (치악산국립공원) dominates the eastern edge of Wonju, with its highest peak Birobong reaching 1,288m. Unlike the rock-and-cliff drama of Seoraksan, Chiaksan is all about dense summer forests, clean mountain streams, and relatively quiet trails. In summer, the trails are emerald green and the valley streams are cold and clear.

The most accessible entry point for a day trip is Guryeong Valley (구룡계곡) on the northern side. The valley trail follows a stream through a series of small waterfalls and pools — it's cool even on the hottest days, and the walk to the main falls takes about 40–60 minutes each way. You don't need to summit to enjoy it. Bring water shoes if you want to wade in the stream pools.

• Best trail for day-trippers: Guryeong Valley (구룡계곡) — flat valley walk, stream pools
• Difficulty: Easy to moderate (Guryeong Valley); strenuous (summit routes)
• Entry fee: 2,000 KRW per person (national park fee)
• Parking: Available near each entrance, free
• Best time: June–September for streams; October for foliage

Optional Extension: Gossi Cave in Yeongwol

If you want to extend the day, Gossi Cave (고씨굴) in nearby Yeongwol is 45 minutes south of Wonju. It's one of Korea's largest limestone caves — 6.5km of passages — and maintains a year-round temperature of 9–11°C. That's essentially an underground air conditioner in summer, which makes it enormously popular on hot days. The walk-through tour takes about 40 minutes.

Gossi Cave sits in the Gangwon Paleozoic Geopark, a UNESCO-recognized geological site. Combined with Wonju, the two make a very full day of Gangwon highland exploration. If you're making the drive from Seoul, adding Gossi Cave turns a 2-hour round trip into a proper overnight trip through Yeongwol — a charming small town worth an extra night.

• Hours: 9:00 AM – 5:30 PM (last entry 4:30 PM)
• Admission: 5,000 KRW adults
• Temperature inside: 9–11°C (bring a light layer even in summer)
• Tour duration: ~40 minutes (guided path, no guide needed)
• Parking: Free at the site

Day Trip Itinerary from Seoul

1. 17:00–7:30 AM — Depart Seoul via Yeongdong Expressway (50)
2. 29:00–9:30 AM — Arrive Sogumsan; start trail to suspension bridge
3. 39:30–12:00 PM — Sogumsan circuit: bridge + skywalk + return
4. 412:00–1:00 PM — Lunch at Sogumsan Grand Valley food area or Wonju city
5. 51:30–3:30 PM — Chiaksan Guryeong Valley trail and stream walk
6. 64:00 PM — Optional coffee/snack in Wonju city center (Wonju is a university city with a solid café scene)
7. 75:00–6:30 PM — Depart for Seoul (avoid Friday evening departures — Yeongdong Expressway backs up badly)

If you're adding Gossi Cave, leave Sogumsan by noon, drive 45 minutes to Yeongwol for the cave (1:00–2:30 PM), then head back to Seoul via the central highway. The full Wonju + Yeongwol loop runs 5–6 hours of driving — better done as an overnight.

Where to Eat in Wonju

Wonju is famous for dakgalbi (닭갈비) — spicy stir-fried chicken with rice cakes and vegetables, cooked tableside. It's a Chuncheon dish that's become synonymous with all of Gangwon Province, and Wonju has several strong spots near the city center. A meal for two runs 25,000–35,000 KRW.

Near Sogumsan, there are food stalls and casual restaurants near the park entrance serving memil (buckwheat) noodles and pajeon (scallion pancakes) — both Gangwon staples. For the Chiaksan area, the Guryeong Valley entrance has a small cluster of restaurants where mountain hiker fare (bibimbap, doenjang jjigae) is the default.

FAQ

Wonju is the kind of place that rewards the drive. You get a suspension bridge, a national park stream walk, and excellent dakgalbi — all within 2 hours of Seoul. Rent a car and go before the rest of the world figures out it's here.