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France
Côtes-d'Armor
Lannion
Perros-Guirec

View of Château de Costaérès

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View of Château de Costaérès

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    September 11, 2025

    Hiking

    Costaérès Castle (French: Château de Costaérès, Breton: Kastell Kostaerez) is a neo-Gothic manor house built in the 1890s. It was commissioned by the Lithuanian-Polish mathematician, electrical engineer, and inventor Bruno Abdank-Abakanowicz on a previously uninhabited island of the same name. Because of its magnificent architectural design, it is also referred to as a castle (French: château).

    The island with the castle is located in the Côtes-d'Armor department in Brittany, France, off the Côte de Granit Rose. Administratively, the manor house belongs to the municipality of Ploumanac'h, but is still located within the municipality of Trégastel.
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    November 17, 2022

    Hiking

    Beautiful view of this mansion which bears the name of the island on which it was built.
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    September 11, 2024

    Hiking

    The Château de Costaérès, located on a rocky islet off the Pink Granite Coast in Brittany, is a true jewel in the middle of the waters. This castle, surrounded by maritime pines and rocks sculpted by the sea, offers a breathtaking landscape, particularly at high tide when the island seems to float on the water. Accessible only at low tide or by boat, this mysterious place attracts visitors for its wild beauty and enchanting setting.
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    Best routes to View of Château de Costaérès

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    1. Ploumanac'h Customs Trail

    5.36km

    01:23

    30m

    30m

    Hike the easy 3.3-mile (5.4 km) La côte de granit rose loop from Ploumanac'h, exploring unique pink granite formations and coastal views.

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    Easy

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

    Moderate

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

    Moderate

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    Elevation 10 m

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    Sunday 1 March

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    Location: Perros-Guirec, Lannion, Côtes-d'Armor, France

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