Best castles around Owl Island offer a journey through history, set within a landscape featuring forests and historical sites. The region provides opportunities to explore fortifications and ruins that date back to the 17th century. Visitors can discover a variety of historical structures, from fortified houses to castle ruins, often situated in scenic natural environments. These sites provide insight into the area's past, including periods of settlement and conflict.
Last updated: June 28, 2026
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During WW2 Castle Archdale was a major base for flying boats and housed up to 2,500 people. Buildings such as these would have been a central location for the RAF fighters who lived here. Sometimes exhibitions are held in these courtyards to display some of the key historical notes of the use of this area during the war.
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Old Castle Archdale is situated on Castle Hill within a 520 hectare coniferous and mixed broadleaved forest. The castle was built in the 1600s and was the main castle on this former estate before its successor took it's place in the 1800s, Castle Archdale.
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Old Castle Archdale sits on a forest clifftop. It is named 'old' to distinguish it from its successor, the 18th century Castle Archdale. The castle was built by an Englishman from Suffolk who had been granted the estate in 1612 after paying 5 pounds, 6 shillings and 8 pence for the 1000 acres of land. During the Irish Rebellion of 1641 the castle was captured by Rory Maguire as part of the uprising to retake his lands that had been lost in 1607. The heir to the castle was saved by his nurse however the other children were killed. After the castle was returned to the family it was repaired and lived in until 1689. The castle saw its end during the Williamite Wars when the castle was burnt out and abandoned.
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This fortified house is on Tully Point and built for Sir John Hume who occupied the house until 1641 when it was attacked by John Maguire and burned on Christmas Eve with all its inhabitants massacred. After that it was not lived in again. There is a visitors centre in a restored farmhouse that has an interesting exhibition telling a number of stories relating to the castle. To visit the castle be sure to step off the bike as it is on foot only!
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The route is only for walking, not much sightseeing, very interesting horse farm. Free parking.
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Like many other castles in the area, Monea Castle was built during the Plantation in the 17th century, when settlers from Great Britain colonised lands in Ireland. The Scottish Reverend Malcolm Hamilton built the castle in 1616 in a distinctly Scottish style. The castle was attacked and occupied during the Irish Rebellion of 1641 and was lived in by the family of colonel Gustav Hamilton until 1704. A few decades later, a fire destroyed much of the castle, leaving it ruined as it is today. The ruins are free to visit and open 9am to 5pm Monday to Friday.
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Perched atop a cliff and surrounded by thick forest, it's easy to imagine how life would have been hundreds of years ago as you wander the crumbling walls of Old Castle Archdale. Built in 1615 by Englishman John Archdale, the castle was captured by the Irish in the Irish Rebellion of 1641. The castle was inhabited until 1689, when it was destroyed by fire and abandoned.
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This fortified house and bawn are set on Tully Point and were built for Sir John Hume who occupied the house until 1641 when it was attacked and burned on Christmas Eve by Rory Maguire and the inhabitants massacred. It was not lived in again. A visitorβs centre, located in a restored farmhouse, houses an exhibition telling local stories relating to the castle. (https://discovernorthernireland.com/things-to-do/tully-castle-p675521)
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Around Owl Island, you'll discover a variety of 17th-century fortifications, including fortified houses and castle ruins. These sites offer a glimpse into the area's past, showcasing different architectural styles and historical periods, often set within scenic natural environments.
Among the most popular are Old Castle Archdale, a 17th-century ruin on a forest clifftop, and Tully Castle Ruins, a fortified house with a visitor's centre telling local stories. Necarne Castle, once a military hospital, is also a notable ruin now largely reclaimed by nature.
Yes, several castles are suitable for families. Tully Castle Ruins features a visitor's centre with exhibitions, making it engaging for all ages. Castle Archdale Courtyard Buildings and Monea Castle Ruins also offer open spaces to explore and learn about history.
Old Castle Archdale was built in 1615 by John Archdale. It was captured during the Irish Rebellion of 1641 and later destroyed by fire and abandoned during the Williamite Wars in 1689. It sits on a forest clifftop, offering a vivid sense of its past.
Absolutely. The area around Owl Island offers various outdoor activities. For running, you can find routes like the 'Old Castle Archdale β Rossmore Point Beacon loop' or trails near Necarne Castle. You can explore more options on the Running Trails around Owl Island guide.
Yes, there are several cycling routes. The Road Cycling Routes around Owl Island guide features options like the 'Boa Island and Pettigo loop from Old Castle Archdale' and routes passing by Tully Castle Ruins. For touring, check the Cycling around Owl Island guide for routes like the 'Kingfisher Cycle Trail - Northern Loop'.
Monea Castle Ruins stands out as a 17th-century Plantation castle built in a distinctly Scottish style by Reverend Malcolm Hamilton in 1616. Like many in the area, it was attacked during the Irish Rebellion of 1641 and later ruined by fire, but its unique architecture remains.
Specific parking details vary by site. For Necarne Castle, free parking is available. For other sites, it's generally advisable to check local signage or visitor information upon arrival, as many are historical ruins within natural settings.
The castles around Owl Island are generally accessible year-round. Spring and summer offer pleasant weather for exploring the outdoor ruins and surrounding natural landscapes. Autumn provides beautiful scenery with changing foliage. Winter visits can be atmospheric, but be prepared for colder, potentially wetter conditions.
While the main castles are well-known, the region is dotted with various 17th-century fortifications and ruins, many of which are less frequented. Exploring the forest clifftops where Old Castle Archdale sits, or discovering the plant-overtaken Necarne Castle, can feel like finding a hidden gem, offering a more solitary historical experience.
The castles are often nestled within scenic natural environments. Old Castle Archdale is situated on a forest clifftop within a large coniferous and mixed broadleaved forest. Many sites are near bodies of water or offer views of the surrounding landscape, providing a blend of history and nature.
Visitors appreciate the journey through history offered by these sites, often set within beautiful natural landscapes. The opportunity to wander crumbling walls, imagine past lives, and explore fortifications from the 17th century is a major draw. The blend of historical intrigue and outdoor exploration is highly valued by the komoot community.


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