Queen of the Castle

When you think of Cornwall, your mind might first jump to rugged coastal cliffs, quaint fishing villages, and sweeping sandy beaches. But Cornwall is also rich in history and heritage, especially in the form of its spectacular castles. Each of these structures tells a story, woven with legends of kings, knights, pirates, smugglers, and battles.

In this blog, let's uncover some of the best castles to visit in Cornwall, each with its own unique appeal and charm. We have also included hiking routes if you fancy a walk to accompany your visit to these castles.

Did we miss any? Leave your favourite castle in the comments!

Tintagel Castle

Perched high above the Atlantic Ocean on the rugged north coast, Tintagel Castle is undoubtedly one of Cornwall's most iconic landmarks.

Image: English Heritage

This legendary site is closely tied to King Arthur, with myths suggesting it was his birthplace. Walking through the ruins and crossing the dramatic footbridge, you’re immediately transported back to a time of knights and sorcery. The spellbinding sea views, the hidden caves below, and the archaeological significance of Tintagel make it an absolute must-visit for history buffs and nature lovers alike.

Highlights: Dramatic coastal location, King Arthur legends, sea caves, and archaeological artifacts.

iWalk Cornwall route: A circular walk from Tintagel to Bossiney Haven and Rocky Valley

St. Michael’s Mount

St. Michael’s Mount is a magical, almost otherworldly castle that rises from the sea just off the coast of Marazion. Accessible by foot at low tide via a cobbled causeway (think Woman in Black film location when foggy!), or by boat when the tide is high, this island castle offers not just stunning views, but also a fascinating history.

Image: Reddit

Originally a Benedictine monastery, it later became the fortified home of the St. Aubyn family, who still live there today. Explore the beautiful gardens, the medieval chapel, the fascinating map room, and the grand rooms, each with a unique blend of Cornish, French, and maritime influences.

Highlights: Island location, tidal causeway, historical gardens, and stunning views across Mount’s Bay.

iWalk Cornwall route: Marazion to Perranuthnoe circular walk

Pendennis Castle

Built by King Henry VIII in the 16th century, Pendennis Castle played a crucial role in defending Cornwall’s coast. Perched on a strategic hilltop above the port of Falmouth, this coastal fortress is a history lover’s dream.

Image: Best Days Out Cornwall

You can explore the castle’s interactive exhibits, cannons, and tunnels that tell tales of Tudor and wartime defences. The panoramic views across Falmouth Bay are outstanding, and there are often re-enactments and family-friendly events that bring history to life.

Highlights: Coastal defences, Tudor history, stunning views of Falmouth, and engaging re-enactments.

iWalk Cornwall route: Falmouth and Pendennis Point circular walk

Restormel Castle

Unlike other fortified castles, Restormel Castle is more circular and open in design, set among lush green surroundings near Lostwithiel. Dating back to the Norman period, it was once an extravagant residence for nobility and played a part in the English Civil War.

Image: Rockleigh Place

What remains today is a picturesque ruin with some of the best-preserved medieval features in Cornwall, including the outer walls and gatehouse. The surrounding countryside makes this spot perfect for a peaceful picnic after exploring the castle grounds.

Highlights: Unique circular design, well-preserved medieval ruins, and scenic countryside surroundings.

iWalk Cornwall route: Restormel Castle and Lostwithiel circular walk

Launceston Castle

Towering above the charming town of Launceston, this Norman castle dates back to the 11th century and offers an intriguing glimpse into Cornwall’s medieval past. Known for its high motte (earth mound) and bailey (courtyard), the castle is famous for its panoramic views over Launceston and the surrounding countryside.

Image: English Heritage

Once the administrative centre for the Earls of Cornwall, the castle’s keep and grounds are perfect for exploring. The town itself has many independent shops and cafes to enjoy afterward, making it a great day out.

Highlights: Elevated position with scenic views, Norman heritage, and proximity to Launceston’s town centre.

Visit the castle: Visit Launceston Castle | English Heritage

Caerhays Castle

Although not technically a medieval fortress, Caerhays Castle is a 19th-century manor house that still holds plenty of castle-like charm. Nestled in a secluded valley along the Roseland Peninsula, this magnificent castle was designed by the architect John Nash.

Image: Britain Express

Caerhays is best known for its extraordinary gardens, filled with rare plants and one of the largest collections of magnolias in the UK. The gardens are open seasonally in the spring, offering a spectacular display of blooms that adds to the allure of this stately estate.

Highlights: Magnificent gardens, 19th-century architecture, and tranquil Roseland Peninsula location.

iWalk Cornwall route: Caerhays Castle to Hemmick Beach circular walk

St. Mawes Castle

Located on the Roseland Peninsula, St. Mawes Castle is often overshadowed by its more prominent counterpart, Pendennis Castle, across the water in Falmouth. Built by Henry VIII as part of a coastal defence strategy, this castle is one of the best-preserved examples of Tudor military architecture in the UK.

Image: We Are Cornwall

Its cloverleaf design is unique and adds to its charm. Plus, the grounds offer lovely views of the Carrick Roads estuary, and you can even spot Pendennis Castle from across the water.

Highlights: Beautiful location on the Roseland Peninsula, unique architecture, and tranquil surroundings with views over the estuary.

iWalk Cornwall route: St Just-in-Roseland to St Mawes circular walk

Trematon Castle

Trematon Castle, near Saltash, is another lesser-known gem. Dating back to the Norman period, this castle is perched on a hill and features a unique stone keep and a small gatehouse. While it’s a private residence, the castle gardens open seasonally, allowing visitors to admire the stunning views over the River Tamar and explore the ruins of the ancient fortifications.

Image: Sykes Cottages

Trematon has a fascinating history, having once been owned by the Black Prince, and its quiet, rural location makes it a peaceful escape.

Highlights: Historic Norman architecture, seasonal garden access, and beautiful views of the River Tamar in a secluded setting.

iWalk Cornwall route: Saltash and Lynher Valley circular walk

Place House (Castle)

Located on the Roseland Peninsula near the picturesque village of St. Anthony-in-Roseland, Place House is a medieval fortified manor that feels like stepping back in time. Built in the 13th century, it served as a defence post due to its strategic coastal location.

Image: South West Coast Pictures

While it’s a private residence, the house’s striking towers, battlements, and secluded setting make it a hidden gem for those who appreciate Cornwall’s quieter historical sites. It's also near the South West Coast Path, so you can admire the exterior from a scenic coastal walk.

Highlights: Secluded location on the Roseland Peninsula, unique battlemented structure, and proximity to beautiful coastal paths.

iWalk Cornwall route: Towan Beach to Place House

Carn Brea Castle

Perched atop Carn Brea Hill near Redruth, Carn Brea Castle is an unusual and fascinating castle with panoramic views across Cornwall. Originally built as a hunting lodge in the 14th century, the castle was modified in the 18th century and now resembles a storybook fortress.

Image: Proper Cornwall

Although it’s been converted into a Middle Eastern restaurant, you can still explore the surrounding area, take in the rugged landscape, and enjoy panoramic views of the Cornish countryside and coast from the hilltop.

Highlights: Spectacular views from Carn Brea Hill, unique history, and the experience of dining in a historic castle setting.

iWalk Cornwall route: Carn Brea and the Great Flat Lode circular walk

Wrapping Up

Each of these Cornish castles offers its own blend of history, legends, and scenery that promises a unique experience. From the island allure of St. Michael’s Mount to the mythic ruins of Tintagel, Cornwall’s castles bring history to life against some of the most striking landscapes in the UK. Whether you’re a history enthusiast, a nature lover, or simply looking for a great day out, exploring these castles is an incredible way to delve into Cornwall’s rich past while enjoying its beautiful present.

Happy castle hunting in Cornwall!

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