Best castles around Trévou-Tréguignec are found along the Côte de Granit Rose in Brittany. This region features unique pink granite formations and coastal landscapes. The area is characterized by its historical manor houses and neo-Gothic structures, often situated on islets or prominent coastal points. These sites offer insights into the local heritage and architecture.
Last updated: July 5, 2026
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The bay is surrounded by large granite rocks and is only fully accessible at low tide, as the sandy beach largely disappears at high tide.
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The neo-Gothic castle, with its towers and battlements, was built in the early 20th century. Although the island is private and the castle is off-limits, it is clearly visible from hiking trails such as the Sentier des Douaniers or from the water. Over the years, it has served as a summer residence and meeting place for artists and celebrities.
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Bastille Beach (Plage de la Bastille) is a small beach in the commune of Perros-Guirec in Brittany, France, known for its view of Château Costaérès. It is located between the port and Saint-Guirec Beach, near Ploumanac'h.
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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. In 1988, the German comedian and actor Dieter Hallervorden purchased the property and had it converted into a second home.
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Beautiful little wild beach with a superb view of the Costaérès castle.
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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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The region is known for its historical manor houses and neo-Gothic structures, often situated on islets or prominent coastal points. These include the large neo-medieval style manor house visible from view of Costaérès Island and Castle, and the neo-Gothic historicist style building seen from View of Costaérès castle.
Yes, Bastille Beach offers a superb view of Château Costaérès. This small beach is located between the port and Saint-Guirec Beach, near Ploumanac'h. It's surrounded by large granite rocks and is best enjoyed at low tide.
While many of the structures are private residences or best viewed from a distance, some offer unique experiences. For example, the building visible from View of Costaérès castle can sometimes be rented for stays, though it requires a significant budget. The Domaine du bois Riou is splendid from the outside, but you cannot enter.
The Côte de Granit Rose, where many of these sites are located, is particularly beautiful during spring and summer when the weather is mild and the coastal landscapes are vibrant. Visiting at low tide can offer better access to certain viewpoints like Bastille Beach for views of Château Costaérès.
Yes, the View of Château de Costaérès is listed as family-friendly. It offers a magnificent view of the manor house on its rocky islet, which can be a captivating sight for all ages, especially at high tide when it appears to float on the water.
The area around Trévou-Tréguignec offers various outdoor activities. You can find numerous MTB Trails, Road Cycling Routes, and Gravel Biking opportunities. Many routes incorporate coastal views and natural landscapes near the historical sites.
While specific circular walks are not detailed for each castle, the coastal paths along the Côte de Granit Rose often provide excellent viewpoints. For instance, walks around Ploumanac'h will offer views of Château Costaérès, which is a prominent feature of the landscape.
The castles and manor houses in this area are often integrated with the unique natural landscape of the Côte de Granit Rose. This means you'll see distinctive pink granite formations, rocky islets, and beautiful coastal scenery, as exemplified by the setting of Château Costaérès.
Visitors particularly appreciate the stunning views of the unique architecture set against the dramatic coastal landscape. The sight of Château Costaérès on its islet, especially from spots like Bastille Beach or View of Château de Costaérès, is often highlighted as a favorite. The blend of history, architecture, and natural beauty is a major draw.
While not a hidden gem in terms of being unknown, the Domaine du bois Riou offers a glimpse into the region's noble history, dating back to the 15th century. Although you cannot enter, its exterior is described as splendid and provides a different historical context compared to the coastal manor houses.
Specific accessibility details for each viewpoint are not provided, but coastal paths can vary in terrain. The View of Château de Costaérès is categorized as potentially challenging, suggesting that some areas might involve uneven ground or steps. It's advisable to check local information for specific path conditions if mobility is a concern.
The castles and manor houses themselves are not typically commercial establishments with cafes. However, viewpoints like Bastille Beach are located near Ploumanac'h, which is a popular tourist area. You will likely find cafes, restaurants, and other amenities in the nearby towns and villages along the Côte de Granit Rose.


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