Best castles around Millbrook, a village in Cornwall, England, offer a glimpse into the region's rich history and coastal defenses. Situated near Plymouth Sound, the area features a landscape shaped by its maritime past and strategic importance. Visitors can explore historical sites and enjoy views across the water. The region is characterized by its proximity to the coast and historical fortifications.
Last updated: June 29, 2026
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The fortress is still a military facility and cannot be visited.
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Trematon Castle has a 12th century keep like nearby Restormel castle. It was built on the site of a Roman fort in a Motte and Bailey style. You can visit the castle but it's only open on Thursday, Friday, and Saturday. You also get a good view from the footpath as you walk past.
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This 17th century defense is still in use by the British military as the base of 29 Commando Regiment of the Royal Artillery. It was originally built as part of defenses against the Dutch. It is possible to visit the citadel for a guided tour. See the English Heritage website for details https://www.english-heritage.org.uk/visit/places/royal-citadel-plymouth/
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Radford Park is a beautiful green space on the edge of Plymstock with a rich history. A grand Elizabethan property stood in the park originally, Radford House, owned by the Harris family for over 500 years. Hosting parties attended by figures such as Sir Walter Raleigh and Sir Francis Drake, this was quite the place to be seen. Demolished in the late 1930s after falling into disrepair, only the grounds remain. The park is free to walk around and offers many interesting sights and viewpoints including over Hooe Lake. The 19th-century castle is a particularly pretty sight and marks the end of the West Devon Way.
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This dramatic 17th-century fortress was built to defend the coastline from the Dutch. The fortress, owned and managed by English Heritage, is still used by the military today.
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Mount Batten is a rocky peninsula in the northeast corner of Plymouth Sound. Mount Batten Artillery Tower, which was built in the 1650s, guards the southern approach to the harbour and was used as a defensive outpost as recently as WWII.
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The Royal Citadel in Plymouth, Devon, England, was built in the late 1660s to the design of Sir Bernard de Gomme. It is at the eastern end of Plymouth Hoe overlooking Plymouth Sound, and encompasses the site of the earlier fort that had been built in the time of Sir Francis Drake.
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The castles and historical sites around Millbrook, Cornwall, are deeply rooted in the region's maritime past and strategic importance. They primarily served as coastal defenses. For example, The Royal Citadel, Plymouth is a dramatic 17th-century fortress built to defend the coastline from the Dutch, and Mount Batten Tower, built in the 1650s, guarded the southern approach to the harbor. Trematon Castle, with its 12th-century keep, dates back even further, built on the site of a Roman fort.
Yes, Radford Castle and Hooe Lake Shipwreck is categorized as family-friendly. While the original Elizabethan Radford House is long gone, the park offers a beautiful green space to explore, with interesting sights and viewpoints over Hooe Lake, making it suitable for families.
Not all of them are fully accessible to the public. The Royal Citadel, Plymouth is still an active military facility and cannot be visited directly, though you can appreciate its grandeur from the outside. Trematon Castle has limited opening hours, typically Thursday, Friday, and Saturday, but you can get a good view from the footpath as you walk past. Radford Castle and Hooe Lake Shipwreck is located within Radford Park, which is free to walk around.
Many of the castle sites offer excellent viewpoints due to their strategic defensive locations. From The Royal Citadel, you can overlook Plymouth Sound. Mount Batten Tower provides views guarding the southern approach to the harbor. Radford Castle and Hooe Lake Shipwreck offers viewpoints over Hooe Lake within Radford Park.
Yes, the area around Millbrook offers various routes that can incorporate castle views. For instance, Radford Castle and Hooe Lake Shipwreck marks the end of the West Devon Way, providing a scenic walking opportunity. You can find several running trails around Millbrook, including routes like 'Edgcumbe Arms, Cremyll – Ruins of Mount Edgcumbe Folly loop from Millbrook' or 'Private Pier View – Cremyll Ferry loop from Millbrook', which might offer views of the coastal fortifications. Explore more options in the Running Trails around Millbrook guide.
Beyond walking, the Millbrook area provides opportunities for cycling and gravel biking. You can find routes like 'Rame Peninsula loop from Torpoint' or 'The Barbican, Plymouth – Tinside Lido loop from St. John' in the Cycling around Millbrook guide. For gravel biking, consider routes such as 'Plym Valley Trail – Shaugh Tunnel loop from Plymouth' from the Gravel biking around Millbrook guide.
The castles around Millbrook showcase a range of defensive architecture. The Royal Citadel is a prime example of a 17th-century fortress designed for coastal defense, while Mount Batten Tower is an artillery tower from the 1650s. Trematon Castle features a 12th-century keep and was built in a Motte and Bailey style, reflecting earlier medieval defensive structures.
While not a 'hidden castle' in the traditional sense, Radford Castle and Hooe Lake Shipwreck offers a charming and perhaps less-trafficked experience within Radford Park. It's a particularly pretty sight with the 19th-century castle ruins and the shipwreck adding to its unique character, marking the end of the West Devon Way.
Visitors to the castles around Millbrook often appreciate the rich history, the dramatic coastal views, and the opportunity to explore sites that played a significant role in defending the region. The blend of historical fortifications with scenic natural surroundings, like those found at Radford Park, is also highly valued by the komoot community.
Most outdoor historical sites and parks, including the areas around the castles, are generally accessible year-round. However, weather conditions in Cornwall during winter can be wet and windy. It's advisable to check specific opening times for sites like Trematon Castle, as these might be reduced. Dressing in warm, waterproof layers is recommended for winter visits.
While specific cafes or pubs directly adjacent to every castle site are not detailed, the Millbrook area and nearby Plymouth offer various amenities. Given the coastal locations, you can often find establishments in nearby towns or villages. For example, the 'Edgcumbe Arms, Cremyll' is mentioned in a nearby running route, suggesting options in that vicinity.


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