The Hakone Nanamagari touge race sits in the Nangan region in the southwestern corner of Forza Horizon 6's Japan map, north of the Irokawa Space Center. It's a tight, hairpin-packed climb modeled on the real Japanese mountain road, and it's the venue you'll need for the Gazoo Racer weekly challenge during the summer of the "Welcome to Japan" Series 1 Festival Playlist.

Hakone Nanamagari touge location on the Japan map
Open the world map and look toward the bottom-left. The Nangan region sits southwest of Tokyo City, and the easiest anchor is the Irokawa Space Center near the southern coast, which is hard to miss thanks to the visible rocket on its pad. From there, scan slightly north, and you'll spot a dense knot of twisting, snake-like roads carved into the mountainside. That zig-zag is Hakone Nanamagari.
The road shows the cherry blossom canopy during spring, which makes it even easier to identify visually. The race itself is a point-to-point touge battle with a heavy concentration of hairpins, so expect tight corner exits rather than long straights.

How to unlock the race event
If the icon isn't showing yet, two things are typically gating it: your Discover Japan progression and whether you've physically driven onto the road. Hakone Nanamagari requires the Blue (Traveller) Stamp tier in the Discover Japan stamp track, which is earned by collecting Wristbands from main story races.
Step 1: Progress the main campaign until you hit the Blue / Traveller stamp threshold in Discover Japan. Keep finishing main story races to bank Wristbands until the southwestern region is freely accessible.
Step 2: Drive south toward Nangan and aim for the Irokawa Space Center. You don't need to set a waypoint to the race itself, since the road is greyed out on the map until you discover it on foot.
Step 3: Roll onto the snake-like asphalt just north of the space center. As soon as your car touches the road, the map updates, the road clears from dark green, and the Hakone Nanamagari touge race icon appears for you to start.

Gazoo Racer weekly challenge requirement
The final step of the Gazoo Racer weekly challenge in the Series 1 Summer Festival Playlist asks you to win a touge battle at Hakone Nanamagari using the 2022 Toyota GR86. The car is class-restricted for the event, so the tune you bring matters.
Region and landmark reference
| Detail | Value |
|---|---|
| Region | Nangan (southwest of Tokyo City) |
| Nearest landmark | Irokawa Space Center (just south of the road) |
| Map appearance | Cluster of tight zig-zag roads |
| Discovery requirement | Blue / Traveller stamp tier in Discover Japan |
| Race type | Touge battle, hairpin-heavy |
| Gazoo Racer challenge car | 2022 Toyota GR86 (B-Class) |
| Season tie-in | Summer, "Welcome to Japan" Series 1 playlist |

How to confirm it's unlocked
You'll know the discovery worked when the surrounding mountainside changes from dark green to fully explored on the map, and a touge race icon labeled Hakone Nanamagari appears on the zig-zag road. Driving up to that icon and pressing the prompt opens the standard touge event setup screen, where you pick your car and start the battle.
If the icon still doesn't appear after driving the road, it usually means the Discover Japan stamp tier hasn't reached Blue yet. Returning to main story races to earn more Wristbands resolves it, after which the icon will be available the next time you visit the area.