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Archipelago

    Indian OceanSeychelles

    5°58′S 53°03′E

    Outer Islands

    Part of Seychelles

    The Outer Islands or Coralline Seychelles (archipelago) is a collective term for those islands of the Seychelles that are not on the shallow Seychelles Bank (Seychelles Plateau) which defines the location of the granitic Inner Islands archipelago to the east.

    Assumption Island with its abandoned runway
    Assumption Island with its abandoned runway

    Simisa / CC BY-SA 3.0

    Chart

    107 landforms

    Overview

    The Outer Islands or Coralline Seychelles (archipelago) is a collective term for those islands of the Seychelles that are not on the shallow Seychelles Bank (Seychelles Plateau) which defines the location of the granitic Inner Islands archipelago to the east. The local Seychellois Creole name for the outer islands is Zil Elwannyen Sesel, while the French name is Îles Eloignées. They are all of coral formation, and in the western Indian Ocean.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    • Major islands6
    • Minor islands30
    • Islets60
    • Rocks & skerries11

    Major islands

    6
    • Assumption Island

      Assumption Island

      Area
      11.5 km²
      High point
      31 m

      Assumption Island is a small island in the Outer Islands of Seychelles north of Madagascar, 1,135 km (705 mi) southwest of the capital, Victoria.

    • Aldabra

      Aldabra

      Area
      9.3 km²
      High point
      16 m

      Aldabra, the world's second-largest coral atoll (the largest is Kiritimati), is located east of the continent of Africa.

    • Coëtivy Island

      Coëtivy Island

      Area
      9.3 km²
      High point
      24 m

      Coëtivy Island is a small coral island in the Seychelles 290 km (180 mi) south of Mahé, at 07°08′S 56°16′E.

    • Astove Island

      Astove Island

      Area
      9.1 km²
      High point
      18 m

      Astove Atoll is a large atoll, part of the Aldabra Group, lying in the Outer Islands of Seychelles, 1,041 km (647 mi) southwest of the capital, Victoria, on Mahé Island. Alphonse Fishing Company and Blue Safari Seychelles operate from the atoll, offering packages to sustainably fly-fish and dive the Astove Wall.

    Minor islands

    30

    Islets

    60
    • Unnamed island16 m · 0.08 km²
    • Unnamed island14 m · 0.07 km²
    • Unnamed island14 m · 0.06 km²
    • Unnamed island4 m · 0.06 km²
    • Unnamed island8 m · 0.06 km²
    • Unnamed island8 m · 0.05 km²
    • Pagode3 m · 0.05 km²
    • Unnamed island5 m · 0.05 km²
    • Unnamed island10 m · 0.04 km²
    • Île Moustique5 m · 0.04 km²
    • Unnamed island11 m · 0.04 km²
    • Unnamed island3 m · 0.04 km²

    Rocks & skerries

    11
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha

    Figures

    Comparative heights

    Sea level50 m100 m84 mFarquhar Atoll31 mAssumption29 mDesroches26 mÎle du Sud25 mAlphonse Atoll24 mCoëtivy23 mPoivre Atoll23 mSaint Joseph22 mD'Arros20 mÎle Florentin19 mFouquet19 mRessource18 mAstove17 mCosmoledo
    High points by island, metres above sea level.

    Islands by area

    0.00010.0010.010.11101001,000South: 112 km²SouthMiddle: 26.6 km²MiddleAssumption: 11.5 km²AssumptionAldabra: 9.3 km²AldabraCoëtivy: 9.3 km²CoëtivyAstove: 9.1 km²AstoveFarquhar Atoll: 8.4 km²Farquhar AtollCosmoledo: 5.1 km²CosmoledoDesroches: 4 km²DesrochesProvidence Atoll: 2.8 km²Providence AtollMenai: 2.5 km²MenaiPolymnie: 1.9 km²PolymnieD'Arros: 1.7 km²D'ArrosAlphonse Atoll: 1.6 km²Alphonse AtollSt. Joseph Atoll: 1.6 km²St. Joseph AtollSt. Pierre: 1.6 km²St. PierreWizard: 1.6 km²WizardÎle du Sud: 1.4 km²Île du SudPoivre Atoll: 1.1 km²Poivre AtollSaint Joseph: 1 km²Saint JosephMarie Louise: 0.56 km²Marie LouiseUnnamed island: 0.55 km²Unnamed islandUnnamed island: 0.52 km²Unnamed islandSt. François Atoll: 0.5 km²St. François AtollÎle Platte: 0.5 km²Île PlatteSouth: 0.43 km²SouthDesnoeufs: 0.41 km²DesnoeufsEuphrates: 0.36 km²EuphratesCoconut: 0.31 km²CoconutRémire: 0.3 km²RémireUnnamed island: 0.3 km²Unnamed islandGrand Polyte: 0.28 km²Grand PolyteUnnamed island: 0.27 km²Unnamed islandFouquet: 0.17 km²FouquetÎle Florentin: 0.15 km²Île FlorentinRessource: 0.11 km²RessourceUnnamed island: 0.08 km²Unnamed islandUnnamed island: 0.07 km²Unnamed islandUnnamed island: 0.06 km²Unnamed islandUnnamed island: 0.06 km²Unnamed island
    km², log scale
    South Island112 km²
    Middle island26.6 km²
    Assumption Island11.5 km²
    Aldabra9.3 km²
    Coëtivy Island9.3 km²
    Astove Island9.1 km²
    Farquhar Atoll8.4 km²
    Cosmoledo5.1 km²
    Desroches Island4 km²
    Providence Atoll2.8 km²
    Menai Island2.5 km²
    Polymnie1.9 km²
    D'Arros Island1.7 km²
    Alphonse Atoll1.6 km²
    St. Joseph Atoll1.6 km²
    St. Pierre Island1.6 km²
    Wizard Island1.6 km²
    Île du Sud1.4 km²
    Poivre Atoll1.1 km²
    Saint Joseph Island1 km²
    Marie Louise Island0.56 km²
    Unnamed island0.55 km²
    Unnamed island0.52 km²
    St. François Atoll0.5 km²
    Île Platte0.5 km²
    South Island0.43 km²
    Desnoeufs Island0.41 km²
    Euphrates Island0.36 km²
    Coconut Island0.31 km²
    Rémire Island0.3 km²
    Unnamed island0.3 km²
    Grand Polyte0.28 km²
    Unnamed island0.27 km²
    Fouquet Island0.17 km²
    Île Florentin0.15 km²
    Ressource Island0.11 km²
    Unnamed island0.08 km²
    Unnamed island0.07 km²
    Unnamed island0.06 km²
    Unnamed island0.06 km²
    Unnamed island0.06 km²
    Unnamed island0.05 km²
    Pagode0.05 km²
    Unnamed island0.05 km²
    Unnamed island0.04 km²
    Île Moustique0.04 km²
    Unnamed island0.04 km²
    Unnamed island0.04 km²
    African Banks0.03 km²
    Unnamed island0.03 km²
    Boudeuse Cay0.03 km²
    Étoile Cay0.03 km²
    Unnamed island0.03 km²
    Unnamed island0.03 km²
    Unnamed island0.03 km²
    Goelette Island0.02 km²
    Unnamed island0.02 km²
    Unnamed island0.02 km²
    Unnamed island0.02 km²
    Unnamed island0.02 km²
    Petit Polyte0.02 km²
    Unnamed island0.01 km²
    Unnamed island0.01 km²
    Unnamed island0.01 km²
    Unnamed island1 ha
    Unnamed island1 ha
    Îlot Lacroix0.9 ha
    Île Baleine0.9 ha
    Unnamed island0.9 ha
    Unnamed island0.7 ha
    Unnamed island0.5 ha
    Île des Rats0.5 ha
    Unnamed island0.5 ha
    Unnamed island0.5 ha
    Unnamed island0.4 ha
    Unnamed island0.4 ha
    Unnamed island0.4 ha
    Unnamed island0.4 ha
    Unnamed island0.4 ha
    Île Macaque0.4 ha
    Unnamed island0.3 ha
    Bertaut Reef0.3 ha
    Unnamed island0.3 ha
    Unnamed island0.3 ha
    Île du Trou0.3 ha
    Unnamed island0.3 ha
    Unnamed island0.2 ha
    Unnamed island0.2 ha
    Unnamed island0.2 ha
    Unnamed island0.2 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha

    Groups within

    5

    Sources

    Facts

    • Geometry, areas and high points: OpenStreetMap contributors (ODbL), Copernicus GLO-30, via Talus.
    • Wikidata
    • Wikipedia

    Photographs