Seoul on a Budget: One Perfect Day from Namsan to the Han River Night View

Did you know that more than 7,000 buses run through Seoul every day?

From wide-ranging express buses that connect the city to the suburbs, to circular routes that loop the same neighborhoods over and over, Seoul's buses come in every color and purpose. Learn to use them well and you can build a day of sightseeing that rivals any official city tour bus — for a tiny fraction of the price.

And there's one bus in particular that locals quietly love: the 간선 (blue trunk-line) Bus 405.

At first glance it looks like nothing special. The people on board aren't camera-toting tourists — they're ordinary commuters heading home. But Bus 405 has a secret. It's a two-way route (염곡동 ↔ City Hall) that threads through some of the most scenic and historic corners of central Seoul: up and over Namsan, through the old markets of the city center, past Itaewon and Hannam, and — on the way back down — straight across the Han River at the exact spot where Seoul's famous fountain lights up the night. One ₩1,500 tap of your transit card covers each ride.

Here's the plan: start high on Namsan in the morning, work down through the old city center in the afternoon, drift through Itaewon and Hannam as the light fades, and finish at the Han River fountain after dark — all on one bus.

Let's go. 가 볼까요? (ga bol-kka-yo? — "Shall we go?")

First: How to Catch Bus 405 Like You Belong There

Before we start, one small but real hurdle for travelers: actually getting on the right bus.

In Seoul you don't flag a bus down — you wait at the stop, check the number on the front, and signal the driver as it approaches. Every stop and every bus now has English announcements, so you'll hear your stop called out in English too. But it still helps to know the one question that saves every traveler:

이 버스 [남산] 가요? i beo-seu [Nam-san] ga-yo? "Does this bus go to [Namsan]?"

Just swap in your destination. If the driver nods, hop on. If not, they'll usually point you the right way.

💡 Pro tip: Tap your T-money card (buy one at any convenience store) when you board and when you get off. A single ride is around ₩1,500, and transfers within 30 minutes are nearly free — so hopping on and off Bus 405 all day costs almost nothing.

🧭 One thing to know about 405: it runs two directions. Going up toward City Hall (시청 방향), it climbs over Namsan and into the old city center. Coming back down toward Yeongok-dong (염곡동 방향), it passes Itaewon and Hannam and then crosses the Han River on Jamsu Bridge — which is exactly why we save the river for last.

Stop 1. 🗼 Start on Namsan: N Seoul Tower & Sowol-ro (남산타워 · 소월로)

Begin your day where Bus 405 does its most beautiful climbing: Namsan.

Take the cable car up to N Seoul Tower first thing, while the morning air is clear and the city stretches out below you. Then, as you head back down, know that this is the stretch 405 is famous for — winding along Sowol-ro (소월로), the curving mountainside road past the Namsan Botanical Garden, quiet galleries, the Namsan Library, and Baekbeom Plaza. Locals say you haven't really seen Namsan until you've ridden this road, so grab a window seat when you board.

🎟️ Korean for the cable car ticket booth

어른 2명, 어린이 1명이요. — eo-reun du-myeong, eo-rin-i han-myeong-i-yo. "Two adults and one child, please."

왕복으로 주세요. — wang-bok-eu-ro ju-se-yo. "Round-trip, please."

(왕복 = round-trip, 편도 = one-way, ~명 = counter for people.)

Give yourself: 2 hours including the cable car.

Stop 2. 🛍️ Namdaemun Market (남대문시장)

Hop back on 405 heading toward City Hall and ride down to Namdaemun Market — the "everything market." As the saying goes, it has everything except the thing you can't find. Even in an era of malls and department stores, this is still the market that comes to mind first when Koreans say the word "시장 (market)."

Grab a snack-dinner and go for the local legends — hotteok (sweet syrup pancakes), kalguksu (knife-cut noodles), and galchi-jorim (braised hairtail). At the bottom edge of the market you'll also find the beautifully restored Sungnyemun Gate (숭례문), one of Seoul's grand old landmarks.

Give yourself: a snack-dinner + browsing, 1.5 hours.

Stop 3. 🏙️ City Hall & Deoksugung (시청 · 덕수궁)

A few more minutes on 405 brings you to Seoul City Hall — where the strikingly modern glass building curves around the old stone one — plus Seoul Library and, right next door, Deoksugung Palace. The palace's stone-wall road (덕수궁 돌담길) is one of the most romantic walks in the city, past and present standing side by side in a single block.

This is roughly where 405 turns around, so it's the perfect pivot point: you've finished the "up" half of the day. Now cross the street, catch 405 heading the other way (toward 염곡동), and let the evening half of the day begin.

Give yourself: an easy stroll, 45 minutes.

Stop 4. 🌍 Itaewon & Hannam (이태원 · 한남)

Riding back down, 405 rolls through Itaewon — Seoul's most international neighborhood, a "world's fair" of food and culture packed into a few hillside streets — and its quietly stylish neighbor, Hannam (한남).

Hannam is having a real moment right now. If Seongsu is where brands throw splashy pop-ups to get discovered, Hannam is where they put down roots: a growing strip of high-touch flagship stores, K-beauty and designer showrooms, cafés, and record shops. It's become one of the "must-do" stops for international visitors who want to experience a brand's world, not just buy something. Hop off for a coffee, browse a flagship or two, and soak up the neighborhood before the light starts to fade.

Give yourself: coffee + a browse, 1–1.5 hours.

Stop 5. 🌈 Grand Finale: The Han River & Moonlight Rainbow Fountain (반포대교 달빛무지개분수)

Now for the moment the whole day builds toward.

Stay on the 염곡동-bound 405 past Itaewon, and the bus does something almost no other route does: it crosses the Han River on Jamsu Bridge (잠수교) — the lower deck of Banpo Bridge — and actually stops on the bridge itself, right beside the Moonlight Rainbow Fountain (달빛무지개분수), recognized by Guinness World Records as the world's longest bridge fountain.

Get off at the "반포한강공원·세빛섬 (Banpo Hangang Park · Sevit Islands)" stop. As the sun sets, water pours in glowing arcs of color down both sides of the bridge, set to music. It is, quite simply, Seoul's most beautiful night view.

Spread out a mat on the grass, and do the most Seoul thing possible: order fried chicken and beer to the riverbank and watch the fountain flow while you eat. This is peak Korean summer-night culture — and yes, you can order it all right from your phone.

🕐 2026 fountain show times (about 20 minutes each):

• Season: March 16 – October 31
• Peak (Jul–Aug): 12:00, 19:30, 20:00, 20:30, 21:00, 21:30
• Off-peak (Apr–Jun, Sep–Oct): 12:00, 19:30, 20:00, 20:30, 21:00

📸 Insider tip: Grab a spot on the right side of Banpo Bridge, near the Dalbit Plaza steps — from there you can frame the bridge, the rainbow fountain, and Namsan Tower all in one shot.

⚠️ Summer heads-up: In heavy rain, when the Han River rises above about 5.5 m, the on-bridge Sevit stop closes and buses skip it (Jamsu Bridge floods by design). On a clear evening you're fine — but if a big storm's just passed, check before you rely on the bus stopping there.

🍗 Korean for a Han River chicken night

내가 바로 주문할게! — nae-ga ba-ro ju-mun-hal-ge! "I'll order it right now on the app!"

돗자리랑 음료수 사자. — dot-ja-ri-rang eum-ryo-su sa-ja. "Let's grab a picnic mat and some drinks."

(치맥 = chicken + beer, 돗자리 = picnic mat, ~하자/~사자 = "let's do / let's buy".)

Your Bus 405 Route at a Glance

🔁 The one trick that makes this work: Ride 405 toward City Hall for Stops 1–3, then cross the street and catch it toward Yeongok-dong for Stops 4–5. The riverside fountain stop only happens on the way back down — so you get a natural sunrise-to-night arc without ever backtracking.

Total transport cost for the day: under ₩5,000.

🎁 Bonus Stop: The National Museum of Korea & Its Cult-Favorite Goods (국립중앙박물관 · 뮷즈)

Here's a fun quirk about Bus 405: it's one of the very few routes that gets close to the National Museum of Korea (국립중앙박물관) — the country's largest museum, tucked away in Yongsan near Seobinggo, in a spot that's genuinely awkward to reach otherwise. On the 염곡동-bound (southbound) side, it sits neatly between Itaewon/Hannam and the Han River — so if you've got the daylight for it, it slots right into the route.

The museum itself is a stunner: over 410,000 artifacts, and through 2026 the permanent galleries are still free (paid admission is coming, but the date hasn't been set — so this year is the time to go). Don't miss the Room of Quiet Contemplation (사유의 방), where two National-Treasure Pensive Bodhisattva statues sit side by side — one of the most breathtaking spaces in any Korean museum.

But here's what's turned the museum into a genuinely hip destination lately: the gift shop. The museum's official goods brand, MU:DS (뮷즈), has become a phenomenon in its own right — part of a wider "hip tradition" trend where young Koreans and tourists collect design objects based on old artifacts. Foreign-visitor purchases have shot up, and some items sell out the day they restock. A few to look for:

• Pensive Bodhisattva miniature (반가사유상 미니어처) — the all-time bestseller and the perfect "take the Room of Quiet Contemplation home with you" souvenir.
• National Seal keycap keyring set (국새 키캡 키링) — a 2026 new release that sold out almost instantly; tiny gold-and-silver turtle and dragon seal handles that double as mechanical-keyboard keycaps.
• Celadon and mother-of-pearl keyrings — light, giftable, and unmistakably Korean.

🕐 If you want to add it to the route: the museum generally closes in the early evening (around 6 PM, later on select nights), so it only works if you reach it before the Itaewon–Hannam–Han River stretch, or if you start your day here instead of Namsan. Check the day's closing time and plan it as an afternoon stop between Hannam and the river — not an after-dark one. The MU:DS shop keeps the same hours as the museum, so shop before it closes.

Learn the Korean That Actually Happens on a Trip Like This

Notice something about the phrases in this guide? None of it is textbook Korean. It's the real language of a real day out — asking a bus driver a question, buying a cable car ticket, ordering chicken to the river.

That's exactly how we teach at Seoul X On. Our Daily Korean lessons are built around real-life situations — the actual Korean you'll use the moment you land, not the kind you memorize and forget. And they're 1:1 live lessons with a real teacher. Sign up for a free account and your first 1:1 lesson is on us.

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The next time you're on a Seoul bus watching the rainbow fountain light up the Han River, you won't just be a tourist taking it in — you'll be ordering the chicken, asking the questions, and understanding the city in its own words.