Trail Running Near Tokyo: Mt. Takao and Beyond
By Natsune — Bilingual runner in Japan who runs every route on this site in person.
Here's something that surprises almost every visiting runner: Tokyo is a mountain city.
Not the part you're staying in — but the western half of Tokyo Metropolis is genuinely mountainous, and the trailheads are on the same train network you're already using. You can leave a Shinjuku hotel at 6am and be running on a forest trail before 7:30.
If you've spent a few days on flat riverside paths and city parks, this is the change of texture that makes the trip.
Mt. Takao — the obvious first one
Mt. Takao (高尾山) is 599m, sits at the end of the Keio Line about 50 minutes from Shinjuku, and is one of the most-climbed mountains in the world. That last part is the catch and the appeal in one sentence.
Why it works for runners: the trail network is genuinely good, well-signed, and varied enough to build a real run. There are several numbered routes up, so you can climb one and descend another. The summit gives you Mt. Fuji on a clear day. There's a temple complex partway up that's worth the stop. And it's all reachable on a single train ride with an IC card.
Which trail: Trail 1 is the main paved approach — busy, and honestly the least interesting. Trail 6 (along the valley stream) and the Inariyama trail are the ones runners want: real dirt, roots, forest, quiet. A loop up one and down the other with the summit in between gives you a solid 8–10K with substantial climbing.
The crowding problem is real. On autumn weekends Takao can be genuinely packed — it's a national pastime. Go on a weekday, and go early. By 9am on a Sunday in November you'll be walking behind a queue rather than running.
Okutama — the serious option
Keep going west on the JR Ome Line and you reach Okutama, which is still technically Tokyo and looks nothing like it: steep forested mountains, a big reservoir, river gorges, and trails that go on for as long as your legs do.
This is proper mountain terrain — longer climbs, more remote, less signage in English. About 2 hours from central Tokyo. Come here if you have trail experience, a map downloaded, and a full day. It's the most beautiful running within Tokyo's borders and almost no visitors ever see it.
Kamakura — trails and temples together
The hills behind Kamakura hold a network of short "hiking courses" — the Daibutsu course, the Tenen course — that link temples through the forest. They're modest in scale (a few hundred meters of elevation) but genuinely technical in places, with roots and steps and narrow ridgelines.
The appeal is the combination: forest trail, then suddenly a 13th-century temple, then the ocean. Our Kamakura temple route covers the road version; the trails are the next layer up if you want dirt under your feet.
Hakone — mountains with a hot spring at the end
Hakone has both: runnable lakeside paths around Lake Ashi and serious mountain trails above it, including sections of the old Tokaido road with its original stone paving. Roughly 90 minutes from Shinjuku on the Odakyu line.
The closing argument for Hakone is the onsen at the end of the run, which is — see our guide to bathing after running — an unbeatable finish.
Trail etiquette in Japan
A few things differ from what you might be used to:
- Greet people. A short "konnichiwa" to everyone you pass is standard on Japanese mountains. It feels odd for about ten minutes and then feels right.
- Uphill has priority on narrow trails — step aside for climbers.
- These are hiking trails, not running trails. Most people on them are walking, often in full hiking gear. Slow down and pass carefully; a runner blasting through is not a good look.
- Bears exist in Okutama and the wider mountains. Bear bells are common and sold at trailheads. It's a low risk, but making noise is the norm and worth respecting.
- Carry out all rubbish. There are no bins.
What to bring
Trail shoes if you have them, though road shoes handle Takao's main routes fine in dry weather. Water — vending machines exist at Takao's trailhead and near the summit but not on the trails themselves. A downloaded offline map (mobile signal is patchy in the valleys). A layer, because ridgelines are colder and windier than the city.
And an IC card, because the whole thing runs on the same train system as your morning commute to the Imperial Palace loop. That's the strange, wonderful part: the mountains here aren't an expedition. They're a train ride.
Run Eat Japan — run, eat, explore. Real routes, real food, no tourist traps.