The Cross-Country Bike Route (국토종주): Incheon & Seoul to Busan
Last verified: 2026-07-16 · distances approximate

What it is
Four certification bike paths strung together into one continuous, mostly car-free ride: a blue line painted on the tarmac leads from the Ara West Sea Lock near Incheon Airport to the Nakdong Estuary Bank in Busan. Searching for the "Seoul to Busan bike path"? This is it — Seoul sits right on the route, about 40 km in. Collect a stamp at every booth on the way and you can claim the Cross-Country medal.
- Ara Bike Path (21 km)
- Hangang Bike Path (~192 km)
- Saejae Bike Path (~100 km)
- Nakdonggang Bike Path (~324 km)
Ride it in either direction — many riders arriving by ferry from Fukuoka start in Busan instead. Note that this is not the same as the Four Rivers certification (that needs the Geum and Yeongsan rivers too).

Stage plans

7 days — recommended
Comfortable daily distances with time for stamps, food stops and photos. The pass day (Day 4) is kept deliberately short.
| Day | From → To | ~km | Notes |
|---|---|---|---|
| 1 | Incheon (Ara West Sea Lock) → Paldang / Namyangju | 70 | Buy your passport at the start (cash!). Flat riverside all day; last stamp in Seoul is Gwangnaru. |
| 2 | Paldang → Yeoju | 85 | Old rail-trail section around Neungnae Station; weir stamps begin. |
| 3 | Yeoju → Chungju | 85 | Quiet South Han river valley. Binae Island booth is remote — check your ink. |
| 4 | Chungju → Sangju | 105 | The big one: Suanbo, then the Ihwaryeong climb (5km, up to ~12%). Start early. |
| 5 | Sangju → Daegu (Gangjeong Goryeong Weir) | 115 | Long weir-to-weir riding on the Nakdong. |
| 6 | Daegu → Namji | 100 | Some short steep ramps ('walls') south of Daegu. |
| 7 | Namji → Busan (Nakdong Estuary Bank) | 73 | Finish at the estuary. Get the passport verified at the staffed center. City traffic near the end — see the city riding guide. |
5 days — fast
For fit riders comfortable with 120km+ days. Little slack for weather or mechanicals.
| Day | From → To | ~km | Notes |
|---|---|---|---|
| 1 | Incheon → Yangpyeong | 120 | |
| 2 | Yangpyeong → Suanbo | 120 | Sleep at the foot of the pass. |
| 3 | Suanbo → Gumi | 130 | Ihwaryeong first thing. |
| 4 | Gumi → Changnyeong (Haman Weir area) | 130 | |
| 5 | Changnyeong → Busan | 133 |
The hard parts, honestly
- Ihwaryeong pass — the one serious climb. Sleep in Suanbo and do it fresh in the morning.
- City traffic in Busan (and leaving Seoul) — the paths are superb, the city streets are not. Read the city riding guide before your last day.
- Monotony — riverside paths bypass villages, and some riders find days 3–5 repetitive. Plan short detours (hot springs at Suanbo, markets in Sangju) to break it up.
- Construction and darkness — on 633 km something is always being repaired, and rural sections are unlit after sunset. The roads & safety guide covers both.