{
  "name": "Iya Valley Road",
  "slug": "iya-valley-road",
  "url": "https://www.bestdrivingroads.com/roads/iya-valley-road/",
  "summary": "Fifteen miles and 180 corners of mostly one-lane cliff road through the Iya Valley, past the Peeing Boy statue, the Kazurabashi vine bridge and the thatched village of Ochiai.",
  "roadNumbers": [
    "32"
  ],
  "location": {
    "country": "Japan",
    "region": "Tokushima",
    "start": {
      "name": "Oboke, Miyoshi",
      "lat": 33.959047,
      "lon": 133.799474
    },
    "end": {
      "name": "Ochiai (Higashi-Iya), Tokushima",
      "lat": 33.858874,
      "lon": 133.887885
    }
  },
  "measurements": {
    "lengthMiles": 15.3,
    "lengthKm": 24.6,
    "driveMinutes": 36,
    "corners": 180,
    "hairpins": 0,
    "maxGradientPercent": 12,
    "summitMetres": 514.2,
    "elevationConfidence": "measured",
    "difficulty": "demanding",
    "tightnessOutOf10": 8
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "summer",
      "autumn"
    ]
  },
  "conditions": {},
  "hazards": [
    "Single-lane cliff edges",
    "Blind-bend oncoming traffic",
    "Rockfall after rain"
  ],
  "scenery": [
    "gorge",
    "valley",
    "forest"
  ],
  "pointsOfInterest": [
    "Hi-no-Ji Bend Viewpoint",
    "Manpu Gorge",
    "Biwa-no-taki"
  ],
  "geometry": {
    "pointCount": 283
  },
  "attribution": {
    "source": "Routes - bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line, not copied from other lists; where elevationConfidence is \"approximate\" the 30 m DEM cannot resolve that line and the elevation figures are indicative.",
    "roadGeometry": "(c) OpenStreetMap contributors, ODbL",
    "terms": "Facts are free to cite with attribution; bulk reproduction of the catalogue requires permission (simon@keane.studio)."
  },
  "updated": "2026-07-25"
}