Maritime links managed by the Brittany regionLiaisons maritimes gérées par la région Bretagne

Liaisons maritimes gérées par la région BretagneMaritime links managed by the Brittany region

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This API provides data on maritime links connecting islands to the mainland that are managed by the Brittany region (France), covering the islands of Bréhat, Ouessant, Molène, Sein, Groix, Belle-Île, Houat, Hoëdic, and Arz. It is published as an open dataset by the Brittany regional authority and offers free access without authentication. The data can be used to identify which ferry or maritime connections serve each island, supporting transport planning, mapping, and public information services related to island accessibility within the region.Liaisons maritimes reliant les îles et le continent gérées par la région Bretagne. Sont concernés les îles de Bréhat, Ouessant, Molène, Sein, Groix, Belle île, Houat, Hoedic et Arz.

transport

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Trust score

How is this computed?

fair

Weighted across five axes. Tap a ring for what it measures.

Data schema (5 fields)

Filterable via the API (3)

gml_ididnom

Click a field to see example values.

Field	Type	Description
geo_point_2dGeo Point	geo_point_2d	Geographic coordinates of the midpoint of the maritime route.Geographic coordinates of the midpoint of the maritime route.
geo_shapeShape	geo_shape	Geometric line representing the maritime route path.Geometric line representing the maritime route path.
gml_idGml id	text	Unique GML identifier of the maritime route feature.Unique GML identifier of the maritime route feature.
id	text	Unique code identifying the maritime route.Unique code identifying the maritime route.
nom	text	Name of the maritime route, showing departure and arrival ports.Name of the maritime route, showing departure and arrival ports.

Schema captured from opendatasoft 3 days ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (5 records)

Record 1id: PLO-BRE · nom: Ploubazlanec Arcouest - Bréhat

{
  "id": "PLO-BRE",
  "nom": "Ploubazlanec Arcouest - Bréhat",
  "gml_id": "liaison_maritime.PLO-BRE",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "LineString",
      "coordinates": [
        [
          -3.012646816458377,
          48.82264718022777
        ],
        [
          -3.004429548778272,
          48.83776382893687
        ]
      ]
    },
    "properties": {}
  },
  "geo_point_2d": {
    "lat": 48.830205504582324,
    "lon": -3.0085381826183246
  }
}

Record 2id: QUI-HOU · nom: Quiberon - Houat

{
  "id": "QUI-HOU",
  "nom": "Quiberon - Houat",
  "gml_id": "liaison_maritime.QUI-HOU",
  "geo_shape": "[large value omitted]",
  "geo_point_2d": {
    "lat": 47.440592334862565,
    "lon": -3.0366382533810246
  }
}

Record 3id: 45254354 · nom: Arzal redon

{
  "id": "45254354",
  "nom": "Arzal redon",
  "gml_id": "liaison_maritime.45254354",
  "geo_shape": "[large value omitted]",
  "geo_point_2d": {
    "lat": 47.56964803905451,
    "lon": -2.2186565926313753
  }
}

Record 4id: ROS-BAT · nom: Roscoff - Ile de Batz

{
  "id": "ROS-BAT",
  "nom": "Roscoff - Ile de Batz",
  "gml_id": "liaison_maritime.ROS-BAT",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "LineString",
      "coordinates": [
        [
          -3.980279500448783,
          48.72621814053246
        ],
        [
          -3.978498059904048,
          48.72571161160427
        ],
        [
          -3.977361623696317,
          48.72567108907116
        ],
        [
          -3.977085193265307,
          48.725954746133304
        ],
        [
          -3.977085193268361,
          48.72621814053261
        ],
        [
          -3.977484481664659,
          48.72668414264643
        ],
        [
          -3.982368085916813,
          48.73219479661029
        ],
        [
          -3.994254594402581,
          48.735517104962376
        ],
        [
          -3.999107484168992,
          48.73624636277234
        ],
        [
          -4.004359662324144,
          48.73652996017749
        ],
        [
          -4.007308253574853,
          48.73659073084021
        ],
        [
          -4.00905897963154,
          48.73681355598298
        ],
        [
          -4.009366124562685,
          48.73713766351381
        ],
        [
          -4.009396839050457,
          48.737785872307576
        ],
        [
          -4.009212552094818,
          48.739527892021336
        ],
        [
          -4.00881326370371,
          48.74054066642655
        ]
      ]
    },
    "properties": {}
  },
  "geo_point_2d": {
    "lat": 48.73359729187696,
    "lon": -3.9924378687391084
  }
}

Record 5id: QUI-HOE · nom: Quiberon - Hoedic

{
  "id": "QUI-HOE",
  "nom": "Quiberon - Hoedic",
  "gml_id": "liaison_maritime.QUI-HOE",
  "geo_shape": "[large value omitted]",
  "geo_point_2d": {
    "lat": 47.4189153452457,
    "lon": -2.9890956983914436
  }
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://data.bretagne.bzh/api/explore/v2.1/catalog/datasets/liaisons-maritimes-gerees-par-la-region-bretagne

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://data.bretagne.bzh/api/explore/v2.1/catalog/datasets/liaisons-maritimes-gerees-par-la-region-bretagne/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.

Full API documentation ↗

Rate limits

5 000 req/day

per ipmeasured

observed 3 days ago

Dataset

Volume & freshness

Records

Last upstream update

5 days ago

2026-10-18

License

No license declared upstream.

○ Documentation○ Data dictionary○ Versioning

Source: opendatasoft

Machine-readable & source

JSON

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