Best castles around Devenish Island are found in the tranquil setting of Lower Lough Erne in County Fermanagh, Northern Ireland. This region is known for its rich history, featuring well-preserved monastic ruins and various castles. The area offers a unique opportunity to explore historical sites surrounded by the natural beauty of the Fermanagh Lakelands. Access to some sites is often by ferry, adding to the experience of visiting these landmarks.
Last updated: May 16, 2026
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The magnificent Enniskillen Castle is situated in the heart of Enniskillen on the banks of the River Erne. The castle was founded in the 15th century by Hugh 'The Hospitable' Maguire and belonged to the Maguire family for centuries. Between 2007 and 2013 a massive refurbishment took place so that the castle could be opened to the public. Today you can explore the castle grounds and learn about this landmarks rich history.
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Run past the beautiful Castle Coole, a magnificent 18th century manor house set in a gorgeous 1,200 acre wooded landscape park.
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The route is only for walking, not much sightseeing, very interesting horse farm. Free parking.
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Castle Coole is one of the most magnificent Neo-classical houses in Ireland set in a 1,200 acre (490 ha) wooded estate. Built in the 18th century, the grand mansion was home to the Earls of Belmore. The 7th Earl Belmore gave the manion to the National Trust in 1951. The house was originally constructed as a summer retreat and cost £57,000, the equivalent of around £20 million today. It is set amongst beautiful parklands dotted with oak, ash and beech trees. Some of the land is given to local farmers to graze their cattle and sheep. You can visit the mansion and its grounds for an insight of how life would once have been for its wealthy inhabitants and their staff. Entrance to the grounds costs £5 per adult.
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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 16th century, Enniskillen Castle has many stories to tell – from Irish rebellions against English rule to sieges and protection from the threat of French invasion. In the 1950s, the castle was decommissioned as an army barracks and opened as a heritage centre. Today, you can visit the museum to learn about the region's history. The castle is open from 9.30am to 5pm (Monday to Friday) and from 11am - 5pm on weekends.
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Castle Coole is a late 18th century neoclassical mansion in Enniskillen, County Fermanagh, Northern Ireland. The house is situated on a 5 km² wooded estate. Unfortunately, I could not visit it, because it was already too late. The interior design and decor should be impressive.
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Once called Irvine Castle, hence the town of Irvinestown, it is now a ruin closed to urban explorers, including cctv. It was in use as late as WWII, when it was a military hospital, but it has since lost its roof and been overtaken by plant life.
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Devenish Island itself is home to significant and well-preserved monastic ruins, not traditional castles. You can explore the impressive 12th-century Round Tower, St. Molaise's House, the Lower Church, and St. Mary's Augustinian Priory. The graveyard also features intricately carved stone crosses from the 15th century. These sites offer a unique glimpse into early Christian Ireland.
Yes, several sites are suitable for families. Enniskillen Castle offers a museum and grounds to explore. Castle Coole, an 18th-century neoclassical mansion, is set within a large wooded estate perfect for walks. The ruins of Monea Castle Ruins are also free to visit and offer a historical experience.
Devenish Island is located on Lower Lough Erne, and access is typically by ferry or water bus. This journey across the lough adds to the unique experience of visiting the site.
The area around Devenish Island offers various outdoor activities. You can find easy hikes like the 'Ancient Chestnut Tree loop from Castle Coole' or 'Lough Coole – Ancient Chestnut Tree loop from Enniskillen'. For running, consider the 'Lough Coole and Castle Coole running loop from Enniskillen'. Road cycling routes, such as the 'Boa Island loop from Brewster Park', are also available. You can find more details on these routes in the easy hikes, running trails, and road cycling guides.
The Fermanagh Lakelands are known for their tranquil beauty. Devenish Island itself is situated on Lough Erne, offering picturesque views of the water and surrounding landscape. The 1,200-acre wooded estate of Castle Coole is another beautiful natural feature, dotted with oak, ash, and beech trees.
Necarne Castle, once known as Irvine Castle, has a varied history. It served as a military hospital during WWII. Today, it stands as a ruin, having lost its roof and been reclaimed by plant life, offering a glimpse into its past.
The Fermanagh Lakelands offer charm throughout the year. Visiting during spring or summer allows for pleasant weather for boat trips to Devenish Island and exploring the outdoor grounds of castles like Castle Coole. Autumn can also be beautiful with changing foliage, though checking weather conditions is always advisable.
To fully appreciate the rich history and explore the various structures on Devenish Island, including the Round Tower, churches, and priory, you should plan for at least a couple of hours. This allows time for the ferry journey and a thorough exploration of the site's exhibition area and ruins.
While specific dog policies for each historical site may vary, many of the surrounding natural areas and walking routes in the Fermanagh Lakelands are dog-friendly. For instance, the extensive parklands around Castle Coole offer opportunities for walks with dogs, though they should generally be kept on a leash.
Monea Castle Ruins were built in 1616 during the Plantation period in a distinct Scottish style by Reverend Malcolm Hamilton. It was attacked during the Irish Rebellion of 1641 and later destroyed by fire, leaving it in its current ruined state. Its unique architecture and history make it a notable site.
Parking options vary by site. For example, Necarne Castle has free parking available. For other sites like Enniskillen Castle or Castle Coole, designated parking areas are typically available, often with a fee for larger estates.
The tranquil environment of Lough Erne and its islands, including Devenish, supports diverse wildlife. You can often spot various bird species, especially waterfowl, given the lake setting. The surrounding woodlands and natural areas also host local flora and fauna.


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