Top 6 Castles around St Agnes
Castles around St Agnes, located in Cornwall, UK, primarily consist of historical fortifications, archaeological sites, and ruins. The area is known for its rugged coastal landscape and significant Iron Age and Civil War history. Visitors can explore remnants of ancient defenses and later military structures, offering insights into the region's past. These sites provide viewpoints over the surrounding sea and land.
Best castles around St Agnes
- The most popular castles is Innisidgen Burial Chamber, a natural monument that is a prehistoric ritual site from the Iron or Bronze Age. It represents an interesting piece of ancient history.
- Another must-see spot is Star Castle, a historic fort. Visitors can walk around the Garrison walls and explore this old fort with a colorful history overlooking the water.
- Visitors also love Cromwell's Castle, a historical site. This fortification was built in 1651 by Parliamentary troops and offers a beautiful view from its upper platform.
- St Agnes is known for Iron Age cliff castles, Civil War fortifications, and historical ruins. These sites offer a variety of historical periods to explore, from ancient burial chambers to 17th-century military structures.
- The castles around St Agnes are appreciated by the komoot community, with more than 20 photos and 20 upvotes.
Last updated: May 3, 2026
Star Castle
Highlight • Viewpoint
Translated by Google •
Tip by
Innisidgen Burial Chamber
Highlight • Natural Monument
Translated by Google •
Tip by
Sign up now to discover places like this
Get recommendations on the best single tracks, peaks, & plenty of other exciting outdoor places.
Sign up for free
Cromwell's Castle
Highlight • Historical Site
Translated by Google •
Tip by
Harry's Walls
Highlight • Historical Site
english-heritage.org.uk/visit/places/harrys-walls
Translated by Google •
Tip by
King Charles's Castle
Highlight • Historical Site
Translated by Google •
Tip by
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around St Agnes
Tips from the Community
There is a hotel in the Star Castle. But you can climb the ring of walls and admire the view.
1
0
Ruins of a Royalist Civil War fort which was blown up before it was stormed by Parliamentary troops. A great vantage point over New Grimbsby Sound.
1
0
Small Civil War-era fort blown up by the Royalists before the storming. Fantastic views over New Grimsby Sound.
1
0
Old Civil War fortifications. Before it was conquered by the Parliamentary troops, it was blown up by the Royalists. Wonderful vantage point
1
0
The newer of the two major fortifications was built in 1651 by Parliamentary troops after taking the island from the Royalists. With his well-fortified cannons on the top of the tower, he dominated the entrance to New Grimsby Sound. The tower is freely accessible and has a beautiful vaulted room inside. There is a beautiful view from the upper platform.
2
0
Beautiful castle overlooking the water. In general, it's nice to walk across the island, the sailing boats in the bays, the lively ferry traffic, the harbor lies like a beehive, the awareness of being here in the middle of the Atlantic. A dream.
2
0
Beautiful walk around the Garrison walls. Lots of historic sights to take in.
1
0
Frequently Asked Questions
What types of historical sites can I explore around St Agnes?
The St Agnes area in Cornwall offers a diverse range of historical sites. You can find Iron Age cliff castles, ancient burial chambers like the Innisidgen Burial Chamber, and 17th-century Civil War fortifications such as Cromwell's Castle and King Charles's Castle. These sites provide insights into different periods of the region's past.
Are there any family-friendly castle ruins to visit near St Agnes?
Yes, Harry's Walls is a family-friendly option. These are the ruins of a former 16th-century fortress that are free to visit, offering an accessible historical experience for all ages.
Which castles offer the best views around St Agnes?
For panoramic views, consider visiting Star Castle, which overlooks the water and allows you to walk around its Garrison walls. Cromwell's Castle also provides a beautiful view from its upper platform, and King Charles's Castle offers a wonderful vantage point over New Grimsby Sound.
What is the historical significance of the castles in the St Agnes area?
The castles and fortifications around St Agnes reflect various historical periods. Sites like the Cliff castle at Tubby's Head are Iron Age archaeological remains. Later, structures like Star Castle, Cromwell's Castle, and King Charles's Castle played roles in the Civil War, showcasing the region's strategic importance and military history.
Can I combine a castle visit with outdoor activities near St Agnes?
Absolutely. Many of the historical sites are integrated into the landscape, making them ideal for combining with outdoor activities. You can find various hiking trails, cycling routes, and running trails that pass by or lead to these castles and ruins. For example, there's a difficult running route that includes Cromwell's Castle and Innisidgen Burial Chamber.
Are there specific hiking routes that feature castles around St Agnes?
Yes, several hiking routes allow you to explore the castles. The Garrison Walls Trail is an easy hike that takes you around the historic fortifications. Other routes, like the 'Garrison Fort, Harry's Walls & Porthmellon Beach loop', incorporate sites such as Harry's Walls into a moderate walk.
What do visitors enjoy most about the castles and historical sites in St Agnes?
Visitors frequently appreciate the rich history and the stunning views. Many enjoy walking around the Garrison walls of Star Castle, exploring ancient sites like Innisidgen Burial Chamber, and taking in the beautiful vistas from fortifications like Cromwell's Castle. The blend of historical exploration and scenic beauty is a major draw.
What kind of archaeological sites can be found near St Agnes?
Beyond standing structures, the St Agnes area is rich in archaeological sites. The Cliff castle at Tubby's Head is an Iron Age cliff castle, a defended coastal promontory with earthworks. Innisidgen Burial Chamber is another significant prehistoric ritual site from the Iron or Bronze Age, offering a glimpse into ancient societies.
Are there any castles or ruins that are free to visit?
Yes, Harry's Walls, the ruins of a 16th-century fortress, are free to visit. Additionally, the tower of Cromwell's Castle is freely accessible, allowing visitors to explore its vaulted room and enjoy the views from its upper platform.
What is the best way to explore the historical sites around St Agnes?
The best way to explore is often on foot, as many sites are connected by scenic paths. Walking allows you to appreciate the coastal landscape and the historical context. Consider following one of the many hiking routes that incorporate these sites, such as the 'St Mary's Island loop' or the 'Garrison Walls Trail'.
Are there any historical sites related to the Civil War in the St Agnes area?
Yes, the area has significant Civil War history. Cromwell's Castle was built by Parliamentary troops in 1651. King Charles's Castle represents Royalist fortifications from the same period, which were blown up by Royalists before being stormed by Parliamentary troops.
Most popular routes around St Agnes
Most popular attractions around St Agnes
Get inspired with the komoot mobile app
Explore more
Looking for the best castles somewhere else? Discover other guides around St Agnes:
