Seoraksan’s 2026 autumn colour has started: the weather service logged first foliage on 28 September, and the Korea Forest Service forecasts the peak around 20 October. You can do it as a day trip from Seoul, with about 2 hours 20 minutes on the express bus to Sokcho plus a local bus to the park gate. My advice for you is one night in Sokcho.
Sunbae Says: Go on a weekday between 19 and 23 October and be at the park gate before 9am. Same leaves, a fraction of the queue.
Picture it: you step off the local bus at Seorak-dong at 8:30am, the ridges are red and gold, and the car parks are half empty.
When The Colour Actually Peaks
The news since late September is good. The Korea Meteorological Administration confirmed first foliage on Seoraksan on 28 September 2026, four days earlier than 2025 and right on the long term average. A cold snap at the start of October was expected to push the colour along.
For the peak, you will see two dates, and both are right. The Korea Forest Service forecasts 20 October (in Korean), counting peak as about 50 percent of leaves turned. The weather service counts peak at 80 percent; its average peak date is 17 October, and last year it landed on 24 October, as Kyunghyang reported (in Korean). Put them together and your sweet spot is roughly 17 to 25 October.
The ridges turn first and the valleys follow, so early November can still bring colour near Sinheungsa. After mid November, skip Seoraksan and stay in the city for the ginkgo in my Seoul fall foliage 2026 guide, or chase the colour south with my Korea in November guide.
You can check the live picture yourself: the weather service posts foliage photos for 21 mountains on its seasonal flowers and foliage page (in Korean).
Heads Up: 9 October (Hangul Day) is a Friday this year, so 9 to 11 October is a long weekend, and 17 to 18 and 24 to 25 October are the peak weekends. Morning buses to Sokcho sell out on those dates, and the roads into the park jam by mid morning.
Pick Your Day
20 October 2026 is a Tuesday, which is good news for you. Here is how the options stack up.
| Option | Best For | Crowds | My Take |
|---|---|---|---|
| Long weekend, 9 to 11 Oct | Only free dates you have | Heavy | Early colour on the ridges only; go if you must |
| Weekend, 17 to 18 Oct | Weekend only travellers | Very heavy | Good colour, worst queues of the year |
| Weekday, 19 to 23 Oct | Anyone flexible | Moderate | My pick: peak colour, sane queues |
| Weekend, 24 to 25 Oct | Late arrivals | Very heavy | Valleys still lovely, ridges fading |
My late October Seoul guide shows what fits around a midweek mountain run, and the What’s On calendar has every festival that week.
Getting There
You have two Seoul terminals, and both work.
Dong Seoul Bus Terminal sits right outside Gangbyeon Station, Line 2 (green), Exit 4 (in Korean). Express buses leave from the second floor and intercity buses from the first. Public timetable data lists around 40 intercity departures a day to Sokcho, from about 2 hours 10 minutes, with a standard fare of 17,300 won.
Seoul Express Bus Terminal is at Express Bus Terminal Station (Lines 3, 7 and 9); follow the signs for the Gyeongbu and Yeongdong building and check Naver Map for the nearest exit. Timetable data shows 35 departures a day to Sokcho Express Bus Terminal, 06:30 to 22:40, about 2 hours 20 minutes, at 15,600 won standard, 20,300 won for an 우등 (udeung, wide seat) and 26,300 won premium.
| Option | Best For | Cost One Way | Time | My Take |
|---|---|---|---|---|
| Seoul Express Bus Terminal | South of the river stays, Gangnam | 15,600 to 26,300 won | About 2h 20m | My pick: cheapest, lands at the terminal bus 7 passes |
| Dong Seoul Bus Terminal | Hongdae, Seongsu, east Seoul | From 17,300 won | About 2h 10m and up | Most departures; great backup when the other sells out |
| Organised day tour | No planning at all | Varies by operator | Coach from central Seoul | Fine, but you arrive with every other coach |
Book express buses on KOBUS and intercity buses on T-money Bus as soon as you know your date. My tourist transit card guide explains which card to tap on the subway.
Step by step, from central Seoul:
- Subway to Express Bus Terminal Station or Gangbyeon Station. Allow 30 to 45 minutes.
- Bus to Sokcho, about 2 hours 10 to 2 hours 30 minutes, 15,600 won and up.
- Local bus 7 or 7-1 (18 and 19 runs a day) from the stop by Sokcho Express Bus Terminal to the last stop, 설악산 소공원 (Sogongwon). The fare is 1,530 won by card or 1,700 won cash, about 30 to 40 minutes.
- Walk into the park. Entry is free.
[AFFILIATE: Klook Seoraksan autumn day tour from Seoul]
Crowds And Traffic In Peak Week
This part is now confirmed. Sokcho’s special traffic plan runs from 3 October to 8 November 2026 (in Korean), mainly on weekends and public holidays. When the main Sogongwon car park fills, cars are turned back to car parks B and C in Seorak-dong, which are free, with free shuttle buses up to the park. Over on the Osaek side, Yangyang County is doubling fines for illegal parking (in Korean).
That tells you everything: do not drive.
After 24 autumns here, my rule: the mountain is the same at 8am on a Wednesday as at 11am on a Saturday. Only one is fun.
[SUNBAE FIELD TEST: ride bus 7 from Sokcho Express Bus Terminal on a peak weekday morning and note the departure time, the ride time and how full it gets]
Which Walk To Choose
Entry to Seoraksan National Park is free, and the Korea National Park Service (in Korean) has park, course and closure information. Sinheungsa temple’s heritage fee, once charged at the gate, was dropped in May 2023.
| Walk | Best For | Distance | Time | My Take |
|---|---|---|---|---|
| Biseondae | Everyone | About 6.8 km return | About 2h 30m | My pick for first timers: big colour, flat path |
| Ulsanbawi | Fit walkers | 3.8 km each way, 808 stairs | 4 to 5 hours | The one you brag about; start by 9am |
| Heullimgol | Keen hikers | 6.2 km one way | 3.5 to 4 hours | Gorgeous, but now booking only |
| Daecheongbong | Experienced hikers | Summit at 1,708 m | Full day or more | Skip unless you have the gear and the legs |
Biseondae is a mostly flat valley walk along Cheonbuldong from Sogongwon. Ulsanbawi climbs to a granite ridge at 873 m, passing Heundeulbawi, the famous rocking boulder, and Gyejoam, a tiny hermitage under a rock overhang. Do not start it after lunch in late October; the light goes early.
Heullimgol is on the Osaek side in Yangyang, a different trailhead from Sogongwon. For October and November it runs on a timed reservation system capped at 5,000 people a day (in Korean), booked online by 2pm the day before. Entry is 8am to 3pm in October and 9am to 2pm in November.
The Cable Car: Worth It Or Skip It?
The Seorak Cable Car (in Korean) goes up to Gwongeumseong in about 10 minutes. It is round trip only: 16,000 won for adults, 12,000 won for children, free under 36 months. The senior discount does not apply from 19 September to 15 November 2026, which is the whole foliage season.
The catch: tickets are sold on the day, at the station, only, and each prints an assigned boarding time that can be hours away in peak week. Miss it and rebooking costs a 20 percent fee. Hours change daily with the wind, so check the operator’s homepage the morning you go. From the top station, allow another 15 to 20 minutes over rock to the viewpoint.
Heads Up: Buy your cable car ticket first thing, then walk to Sinheungsa while you wait. Queue at 11am on a peak weekend and you may get an afternoon slot with little time at the top.
Worth It if you are travelling with grandparents or small kids and you are at the ticket window as it opens. Skip It if you are fit and it is a peak weekend: walk to Biseondae instead and you will see more colour for free.
Behind The Scenes
“첫 단풍” is a precise measurement, not a vibe. When Korean news says first foliage, it means the weather service has seen about 20 percent of the mountain coloured from the summit down. Peak means 80 percent on that scale. So when a Korean blog says “단풍 절정” in mid October and another says late October, they are often using different agencies’ definitions, not disagreeing.
Koreans plan around the car parks, not the leaves. The October chatter is about which lot fills first and when the shuttle starts, which is why the official plan centres on car parks B and C. On the bus, you sidestep the whole fight.
Sokcho has two terminals. Tickets say 속초고속버스터미널 (express) or 속초시외버스터미널 (intercity), and they are different buildings. Buses 7 and 7-1 stop at the express one, so landing there means no transfer.
Pick Your Version
If It’s Your First Time
Stay one night. I’d take an afternoon bus from Seoul, eat by Sokcho harbour, sleep early, and ride the first local bus to Seorak-dong. Buy a cable car ticket, walk Biseondae while you wait, then ride up. If you are still sorting your arrival paperwork, do your e-Arrival Card before you fly, not on the bus.
If You’re Travelling Solo
One seat is easier to find than two on a busy bus. I’d do Ulsanbawi on a weekday, start by 8am, and tell someone at your guesthouse which trail you are on. My solo Seoul in autumn guide covers the rest of your week.
If You’re Here For A Reset
Make the walk the point, not the summit. Biseondae is a long, gentle valley stroll beside clear water, and Sinheungsa is a working temple where you can sit quietly for a while. Back in Seoul, sore legs are exactly what a jjimjilbang is for.
Sunbae’s Picks
My pick for your one mountain day: Biseondae on a Tuesday or Wednesday between 19 and 23 October. It is the best colour for the least effort.
If I only had one morning here, I’d be on the first local bus, buy a cable car ticket on arrival, and walk to Heundeulbawi while my slot comes up. Rock, temple, valley and ridge views in one morning.
If Seoraksan sells out on you, stay in Seoul and do the Haneul Park silver grass festival instead. Different plant, same golden light, subway fare only.
[SUNBAE STORY: a general memory of a quiet weekday morning on the Biseondae path versus a packed weekend at Sogongwon]
Offers Worth Knowing
Park entry and the walk past Sinheungsa are free, and so are car parks B and C and their shuttles during the traffic plan. Under 36 months ride the cable car free; children pay 12,000 won.
What’s Changing In 2026
Heullimgol now needs a booking. Until 30 September you could just walk in. From 1 October it is timed reservations only, 5,000 a day, through 30 November. If it is on your list, book the moment your date is fixed.
An early start, a slightly later peak. First foliage came four days earlier than in 2025, yet the Forest Service puts the peak about 0.8 days later than the five year average. My read: the classic “go in mid October” advice lands a touch early, so aim for 18 to 23 October.
The road to the gate is being widened. The 1.6 km stretch from Cheongbong Bridge to Sogongwon is being widened from 8 m to 12 m, with completion targeted for June 2027. Expect roadworks on top of foliage traffic this year, one more reason to leave the car.
Heads Up: Last year the high trails toward Daecheongbong closed from 15 November to 15 December (in Korean) for wildfire season, while Biseondae and Ulsanbawi stayed open, and fines for sneaking in ran 200,000 to 500,000 won. Expect a similar closure in mid November 2026 and check the park service before any late season hike.
[AFFILIATE: Agoda hotels in Sokcho and Seorak-dong]
Pack For The Ridge
Bring layers: the ridges are much colder than Seoul, and the rocks near Gwongeumseong want proper shoes. My full packing list is in the what to wear in autumn and winter guide.
Word Of The Stop
단풍 (danpung): autumn leaves, the red and gold kind. You will see 단풍 on every bus poster in October. “첫 단풍” (cheot danpung) is first foliage, and “단풍 절정” (danpung jeoljeong) means peak foliage.
Map And Directions
- 1Dong Seoul Bus Terminal 동서울종합터미널2Gangbyeon StationEXIT4
Around 40 intercity buses a day to Sokcho from 17,300 won; express buses board on the 2nd floor, intercity on the 1st
- 2Seoul Express Bus Terminal (Gyeongbu and Yeongdong) 서울고속버스터미널 경부영동선Area pinExpress Bus Terminal StationCheck Naver Map for the exit
35 buses a day to Sokcho, 06:30 to 22:40, 15,600 won standard; book on KOBUS
- 3Sokcho Express Bus Terminal 속초고속버스터미널
Arrival from Seoul Express Bus Terminal; buses 7 and 7-1 to Seoraksan stop here
- 4Seoraksan Sogongwon (Seorak-dong entrance) 설악산 소공원Area pin
Free entry; last stop of buses 7 and 7-1; car park overflows to free lots B and C on weekends 3 Oct to 8 Nov
- 5Seorak Cable Car (Gwongeumseong) 설악케이블카 권금성Area pin
16,000 won adult round trip; same day tickets only with an assigned boarding time; hours posted daily
- 6Sinheungsa 신흥사
Working temple on the way into the valley; no entry fee since May 2023
- 7Biseondae 비선대Area pin
Mostly flat valley walk, about 6.8 km return, around 2h 30m from Sogongwon
- 8Ulsanbawi 울산바위
3.8 km each way, 808 metal stairs, 4 to 5 hours return; start by 9am
Your Tickets
Seoul area bus colours: Blue bus · 간선 Green bus · 지선 Red bus · 광역 Yellow bus · 순환
Last Mile
- Central Seoul → Express Bus Terminal Station (Lines 3, 7, 9) or Gangbyeon Station (Line 2, Exit 4) about 30 to 45 min
- Seoraksan Sogongwon → Biseondae around 2h 30m return
- Seoraksan Sogongwon → Ulsanbawi 4 to 5 hours return
Tap a button to open directions on your phone. In Korea, Naver Map and KakaoMap give full walking directions; Google Maps covers subway and bus but, as of September 2026, still has no turn by turn walking or driving here. Pins marked “Area pin” show a neighbourhood, not a door.
Frequently Asked Questions
When Is The Best Time To See Seoraksan In Autumn 2026?
First foliage was confirmed on 28 September 2026, and the Korea Forest Service forecasts the peak around 20 October. Aim for a weekday between 17 and 25 October.
Can I Do Seoraksan As A Day Trip From Seoul?
Yes: about 2 hours 20 minutes by bus to Sokcho, then 30 to 40 minutes on bus 7 or 7-1. Book your return before you leave.
How Much Does The Seoraksan Cable Car Cost?
16,000 won adults, 12,000 won children, round trip, sold on the day only.
Is There An Entrance Fee For Seoraksan?
No. National park entry is free, and the Sinheungsa heritage fee ended in May 2023. Heullimgol needs an advance online booking in October and November.
Which Seoraksan Trail Is Best For Beginners?
Biseondae: about 6.8 km return on a flat valley path, around 2 hours 30 minutes.
Next Stop
- Seoul Fall Foliage 2026: the city’s own colour, no bus required.
- Nami Island In Autumn: the easier leaf trip if Seoraksan feels too far.
- Korea In November 2026: where to chase the colour once the ridges go bare.
Resources
- Korea National Park Service (in Korean): trail closures, reservations and course information.
- KNPS reservation system for Heullimgol (in Korean): timed entry bookings for October and November.
- Seorak Cable Car (in Korean): fares and the daily operating hours.
- Weather service foliage page (in Korean): live foliage photos for 21 mountains.
- KOBUS (kobus.co.kr) and the T-money Bus app: express and intercity bus tickets.
- Naver Map or KakaoMap: search 설악산 소공원 for the bus stop and walking routes.
- 1330 Korea Travel Hotline: English help by phone, any time.
How I Checked This
On 4 October 2026 I rechecked the first foliage date against the weather service announcement (via the Korea Times, SBS and Kyunghyang), the Forest Service forecast, Heullimgol’s rules on the park reservation site, the cable car operator’s page, and the 2026 traffic plan in Korean regional news. Bus timetables and fares come from public timetable data, because KOBUS and T-money Bus did not load for me; confirm when you book. Cable car daily hours, shuttle intervals and the 2026 wildfire season closure dates were not yet published.
Sources
- Korea Times: Mount Seorak welcomes first fall foliage (28 Sep 2026)
- SBS News: First fall foliage observed on Mt. Seoraksan
- Kyunghyang Shinmun: Seoraksan first foliage, 4 days earlier (Korean)
- Money Today: KMA first foliage announcement (Korean)
- Kyunghyang Shinmun: Korea Forest Service 2026 foliage peak forecast (Korean)
- Vegan News: Forest Service peak forecast and 50 percent definition (Korean)
- Korea Meteorological Administration seasonal flowers and foliage (Korean)
- KNPS reservation system: Heullimgol service guide (Korean)
- VisitKorea: Seoraksan Heullimgol (Korean)
- The Travel News: Heullimgol 5,000 a day from October (Korean)
- Korea National Park Service (Korean)
- Seorak Cable Car official guide (Korean)
- Aju News: Sokcho special traffic plan, 3 Oct to 8 Nov (Korean)
- Seoul Shinmun: Seoraksan traffic measures and parking fines (Korean)
- Kangwon Ilbo: 18 Sep 2026 traffic agreement (Korean)
- Kyunghyang Shinmun: 2025 high trail closure 15 Nov to 15 Dec (Korean)
- Dong Seoul Terminal: directions (Korean)
- Seoul Media Hub: Seoul bus terminal tips (Korean)
- Korea Charts: Seoul Express Bus Terminal to Sokcho timetable and fares
- Bustrain: Dong Seoul to Sokcho intercity timetable (Korean)
- Namuwiki: Sokcho city bus fares and routes 7 and 7-1 (Korean)
- Mulhoe: Seorak cable car queue guide (Korean)
- Seorak Today: Sinheungsa admission fee waived from 4 May 2023 (Korean)
- Tell Trip: Ulsanbawi 3.8 km, 808 stairs, 873 m (Korean)
- Hiking Beginner: Biseondae course (Korean)
Written by your sunbae. 24 years living in Seoul, former Korean TV and radio presenter, university professor, and two decades behind the decks in the city’s clubs. Every fact here is checked against official sources and, wherever possible, on the ground.
Beep Check: verified 4 Oct 2026. Rules, prices and dates change; confirm with the official source before you travel.