Castles around Lenaghan are primarily found within the wider County Fermanagh region of Northern Ireland, an area characterized by its numerous loughs, particularly Lower Lough Erne. This landscape features historical sites, including 17th-century Plantation castles and fortified houses. The region offers opportunities to explore historical architecture set within natural environments.
Last updated: May 1, 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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Built in the 17th century, Castle Caldwell was part of the Ulster Plantation, a province of Ireland colonised by British settles throughout King James I era. The castle had a number of inhabitants after that and fell into ruin towards the 1800s. Although access to the castle is now forbidden due to its dangerous state of repair, the surrounding park and forest can be explored freely. Keep your eyes peeled for the ruined chapel and overgrown graveyard.
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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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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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Built in the 17th century by Francis Blennerhasett of Norfolk, Castle Caldwell was once part of Ulster Plantation, a province of Ireland colonised by British settlers during the reign of King James I. The castle had various inhabitants over the centuries until it fell into ruin towards the end of the 1800s. Today, Castle Caldwell lies within Castle Caldwell Forest Park, a nature reserve on the banks of Lower Lough Erne. Although access to the castle is forbidden due to its ruinous state, you can visit the surrounding park for free. Look out for the ruined chapel and overgrown graveyard too.
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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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The castles around Lenaghan, primarily located in County Fermanagh, are significant examples of 17th-century Plantation castles and fortified houses. They offer insights into the period when English and Scottish settlers colonized lands in Ireland. Many of these sites, such as Old Castle Archdale, Tully Castle Ruins, and Monea Castle Ruins, played roles in the Irish Rebellion of 1641, showcasing a turbulent period in Irish history.
For a clear understanding of Plantation architecture, Monea Castle Ruins is an excellent example, known for its distinct Scottish architectural influences, including corner turrets and round towers. Tully Castle Ruins also exemplifies the Scottish Baronial style with its fortified tower and courtyard.
Yes, several castles offer family-friendly experiences. Tully Castle Ruins has a visitor's centre with exhibitions detailing its history, making it engaging for all ages. Monea Castle Ruins and Castle Archdale Courtyard Buildings are also categorized as family-friendly, offering open spaces to explore.
Many castles are set within beautiful natural environments. Tully Castle Ruins is situated on Tully Point, offering commanding views of Lower Lough Erne. Castle Caldwell Ruins are located within Castle Caldwell Forest Park, a nature reserve on the banks of Lower Lough Erne. Old Castle Archdale is nestled within a large forest, providing a scenic backdrop.
The region around Lenaghan offers various outdoor activities. You can find easy hiking trails near Old Castle Archdale and Tully Castle Ruins, such as the Castle Archdale loop or the Tully Castle Ruins loop. For more options, explore the easy hikes around Lenaghan guide. Cycling and mountain biking routes are also available, with options like the Rossmore Point Beacon – Old Castle Archdale loop for cycling, or the Scarplands Cycle Trail for mountain biking. Check the cycling around Lenaghan and MTB Trails around Lenaghan guides for detailed routes.
The best time to visit is generally during the spring and summer months (April to September) when the weather is milder and daylight hours are longer, making it ideal for exploring ruins and enjoying the surrounding natural landscapes. However, the ruins are accessible year-round, and autumn offers beautiful foliage.
Beyond the more prominent sites, Castle Caldwell Ruins offers a fascinating, albeit ruinous, glimpse into 17th-century history. Located within Castle Caldwell Forest Park, its secluded setting and overgrown chapel and graveyard provide a unique, atmospheric experience. Access to the ruins themselves is forbidden due to their dangerous state, but the surrounding park can be freely explored.
Yes, the 1641 Irish Rebellion is a recurring theme at several castles. Old Castle Archdale was captured during the uprising. Tully Castle Ruins is famously associated with a tragic massacre and burning during the rebellion, with a visitor's centre providing detailed context. Monea Castle was also attacked and occupied during this period.
Tully Castle Ruins, located on Tully Point overlooking Lower Lough Erne, features a boat jetty, making it accessible by water. This offers a unique way to approach and experience the historical site and its scenic surroundings.
Visitors frequently appreciate the historical depth and picturesque settings of these castles. The atmospheric ruins, often nestled within forests or overlooking loughs, provide a strong sense of history and opportunities for tranquil walks. The komoot community has shared over 13 photos and given more than 12 upvotes, highlighting the visual appeal and historical interest of these sites.
Yes, Monea Castle Ruins are free to visit and generally open from 9 am to 5 pm, Monday to Friday. While access to the immediate ruins of Castle Caldwell Ruins is restricted for safety, the surrounding Castle Caldwell Forest Park is free to explore.
While not a traditional castle ruin, the Castle Archdale Courtyard Buildings are a significant historical site. During WWII, Castle Archdale served as a major base for flying boats, housing up to 2,500 people. These buildings were central to the RAF fighters stationed there, and exhibitions are sometimes held to showcase this wartime history.


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