
The Winter Festival’s Hirosaki Castle photo challenge and Hokubu Treasure Hunt fit into one 30-to-45-minute northbound drive. Start in Takashiro with a Classic Sports Car, photograph Hirosaki Castle from its courtyard, then continue into snowy Hokubu and search the car park on the north-west side of the Shikisai-No-Aka flower fields. Both activities rotate with the Winter Festival playlist, currently scheduled to end around August 6.
The Hirosaki objective fails if the car is in the wrong category, even when the castle is framed correctly. Change cars before driving to the landmark rather than arriving in a convenient winter build and having to return to a garage.
To change cars, open Menu / Start → Cars → Change Car on controller, or Esc → Cars → Change Car on keyboard. In the garage list, open Filters with Y on controller or the displayed keyboard binding, then select Classic Sports Cars. An older Nissan Fairlady, Toyota sports model, Mazda RX-3, or any other eligible garage car will work. Performance rating does not matter for the challenge.
Hirosaki Castle is in the north-east of the Takashiro region, close to the snowy northern edge of the map. The useful map landmark is a large rectangular raised plot surrounded by water. It sits north of a lake, with orange and white roads looping around the exterior like a moat road.
Open the map with View / Back on controller or M on keyboard. Place a waypoint on the rectangular island rather than on the roads beside it. A nearby Takashiro Festival location, race event, or the Nukabira Trail Event provides a reasonable starting point if a full cross-map drive is unnecessary.
The access ramp is the point that wastes most time. The castle is visible from several angles around the moat, but the photo is easier to register from inside the grounds because the tower can fill the frame without trees, railings, or the outer road blocking it.

Park in the courtyard with the castle tower behind or beside the car, then enter Photo Mode. The image must contain both the Hirosaki Castle landmark and the Classic Sports Car being used. A distant silhouette of the building is less reliable than a close, unobstructed composition.
Common failure: taking an attractive landscape photo from the outer moat road. The image can show Hirosaki Castle but still fail because the car occupies too little of the frame or the landmark recognition does not lock on. Reposition in the courtyard and use the tower as the dominant background object.
Once the challenge completes, the Winter playlist awards its cosmetic reward, identified for this rotation as a white suit. Check the Festival Playlist immediately after taking the image; the completed tile is the confirmation that the challenge registered, rather than the saved screenshot alone.
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Leave Hirosaki Castle by the same bridge or ramp and take the northern road network into Hokubu. Keep the Classic Sports Car unless its snow handling has become a problem; changing vehicles is unnecessary after the photo, but a better winter setup can reduce slides on the final approach.
Set the next waypoint on the Shikisai-No-Aka flower fields in central Hokubu, not on an assumed chest icon. The Treasure Hunt clue points players toward a wooden building and snowy roadside scenery, but the chest is positioned in a small car park rather than out in the middle of the fields.
The route is deliberately more reliable than searching every snowy road suggested by the clue. Hokubu contains several wooden structures and roadside decorations, including the hay-bale scarecrows associated with the area. The correct destination is defined by its road layout: northern highway, inner white road, then a compact car park overlooking the snow-covered fields.

The chest is on the north-western side of the Shikisai-No-Aka flower fields. It is next to a small garage building in a car park positioned between the highway that runs around the field’s north side and the white road running through the fields. From the car park, the chest looks out across the snow-covered flower plots.
Approach slowly once the small garage comes into view. The chest is easy to miss at speed because the building, parked-space markings, and snow blend into the same pale background. There is no need to solve an additional driving objective after reaching it: drive directly into the chest to break it open.
If Hirosaki Castle does not register in Photo Mode, verify the current vehicle category first. A Classic Sports Car is mandatory; a classic-looking car from another manufacturer group or performance class will not satisfy the playlist tile. Then move into the courtyard, turn the camera toward the south-east tower, and retake the picture with the vehicle and tower fully visible.
If the Hokubu chest does not appear at the expected garage, confirm that the active playlist contains the Hokubu Winter Treasure Hunt and that the seasonal objective has been activated. The chest is not directly reachable through fast travel, so the final search must be done from the surrounding roads. Use the highway north of the flower fields as the reset point, then re-enter the car park between it and the white internal road.
The practical order remains fixed: photograph Hirosaki Castle while the Classic Sports Car requirement is active, then continue north to the Shikisai-No-Aka garage car park and smash the chest. This avoids a second Takashiro trip and clears both Winter Festival exploration tasks before the playlist rotates.