{
  "type": "FeatureCollection",
  "_about": "A zone and a route that cross 180 degrees longitude, each cut in two at the antimeridian as RFC 7946 section 3.1.9 recommends. Free sample from 99helpers.com/file-types/geojson",
  "bbox": [172.0, -20.0, -172.0, -15.0],
  "features": [
    {
      "type": "Feature",
      "id": "sample-zone",
      "bbox": [175.0, -20.0, -175.0, -15.0],
      "geometry": {
        "type": "MultiPolygon",
        "coordinates": [
          [
            [
              [175.0, -20.0],
              [180.0, -20.0],
              [180.0, -15.0],
              [175.0, -15.0],
              [175.0, -20.0]
            ]
          ],
          [
            [
              [-180.0, -20.0],
              [-175.0, -20.0],
              [-175.0, -15.0],
              [-180.0, -15.0],
              [-180.0, -20.0]
            ]
          ]
        ]
      },
      "properties": {
        "name": "Sample shipping zone",
        "note": "One rectangle from 175°E to 175°W, stored as two polygons that meet at 180°."
      }
    },
    {
      "type": "Feature",
      "id": "sample-route",
      "bbox": [172.0, -17.5, -172.0, -16.5],
      "geometry": {
        "type": "MultiLineString",
        "coordinates": [
          [
            [172.0, -17.5],
            [180.0, -17.0]
          ],
          [
            [-180.0, -17.0],
            [-172.0, -16.5]
          ]
        ]
      },
      "properties": {
        "name": "Sample ferry route",
        "note": "One straight route, cut where it crosses 180°."
      }
    }
  ]
}