{
  "name": "1100 Road (Jeju)",
  "slug": "jeju-1100-road",
  "url": "https://www.bestdrivingroads.com/roads/jeju-1100-road/",
  "summary": "Jeju's highest road crosses the shoulder of Hallasan at 1,100 m, the UNESCO volcano that fills the centre of Jeju Island, linking Jeju City to the Jungmun coast.",
  "roadNumbers": [
    "1100"
  ],
  "location": {
    "country": "South Korea",
    "region": "Jeju",
    "start": {
      "name": "Jeju City",
      "lat": 33.485951,
      "lon": 126.479479
    },
    "end": {
      "name": "Seogwipo",
      "lat": 33.251589,
      "lon": 126.431622
    }
  },
  "measurements": {
    "lengthMiles": 20.8,
    "lengthKm": 33.5,
    "driveMinutes": 42,
    "corners": 49,
    "hairpins": 1,
    "maxGradientPercent": 8,
    "summitMetres": 1099.2,
    "elevationConfidence": "measured",
    "difficulty": "easy",
    "tightnessOutOf10": 5
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "autumn",
      "winter"
    ]
  },
  "conditions": {},
  "hazards": [
    "Closures in heavy snow or strong wind",
    "Icy surface in winter without chains",
    "Weekend congestion"
  ],
  "scenery": [
    "mountain",
    "forest",
    "valley"
  ],
  "pointsOfInterest": [
    "Georin Deer Observatory",
    "Jeju Dokkaebi Road (Mystery Road)"
  ],
  "geometry": {
    "pointCount": 163
  },
  "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": "2026-08-03"
}