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Northern Ireland
Newry And Mourne

Killowen Mountains

Top 7 Lakes around Killowen Mountains

Best lakes around Killowen Mountains are found within the Mourne Mountains, a prominent range in County Down, Northern Ireland. This area is characterized by granite peaks and heathered slopes, providing a tranquil natural setting. The region features both natural mountain loughs and significant man-made reservoirs, contributing to its scenic beauty. Visitors can explore a variety of landscapes, from peaceful lakeshores to well-maintained walking trails.

Best lakes around Killowen Mountains

  • The most popular lakes is Silent Valley Reservoir, a viewpoint…

Last updated: May 1, 2026

Silent Valley Reservoir

Highlight • Viewpoint

Silent Valley Reservoir in the heart of the Mourne Mountains is one of the most beautiful places in Northern Ireland.

Situated in the Mourne Mountains AONB near Kilkeel, Silent Valley …

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Silent Valley Duck Pond

Highlight • Lake

The Duck Pond feels like a calm secret waiting to be discovered. Recommended by hikers and tucked into a protected area, it’s a gentle spot where water glimmers among reeds and mountains frame the quiet mirror below.

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Red Bog Pond

Highlight • Natural

Nice and peaceful place with a bench that's perfect for resting weary legs and watching the wildlife around the lake.
Even with the new gravel path this area can get quite boggy so best to wear the boots.

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A short climb rewards you with sensational views over Rostrevnor Forest and the glacial fjord of Carlingford Lough.

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View of Carlingford Lough from Mourne AONB

Highlight (Segment) • Lake

Amazing views of Rostrevor national park and the coast from here. The trails are as good as the views too, with loads of interesting up and downhill sections. A great place to ride off-road!

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Damiano 🇮🇹
August 27, 2025, Silent Valley Duck Pond

The Duck Pond feels like a calm secret waiting to be discovered. Recommended by hikers and tucked into a protected area, it’s a gentle spot where water glimmers among reeds and mountains frame the quiet mirror below.

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Silent Valley Reservoir, nestled in the Mourne Mountains, is a peaceful retreat surrounded by sweeping granite peaks and heathered slopes. Built in the early 20th century to supply water to Belfast and much of County Down, the reservoir combines striking engineering with natural beauty. Visitors can stroll along well-kept paths, admire the Victorian-style dam and impressive Mourne Wall, or simply enjoy the quiet atmosphere by the lakeshore.

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The well-maintained trails take you through impressive scenery, surrounded by the striking peaks of the Mournes. The view of the Mourne Wall, which stretches for 35 kilometers and connects 15 peaks, is particularly impressive. However, some sections can become slippery in wet weather, so caution is advised. A highlight is a visit to Ben Crom Reservoir, which can be reached via an extension of the route. Note that there is a fee to enter the park.

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A beautiful forest with good views of the sea

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Designated viewpoint, with a nice bench to relax

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Nice duck pond with picnic benches and kids play park

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Beautiful area with a good kids play park

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Silent Valley Reservoir in the heart of the Mourne Mountains is one of the most beautiful places in Northern Ireland. Situated in the Mourne Mountains AONB near Kilkeel, Silent Valley Reservoir not only supplies most of the water for County Down and Belfast, but it is also a beautiful spot to visit. Nestled in the heart of the Mournes between Slieve Binnian and Slieve Muck, Silent Valley lives up to its name as one of the most peaceful and tranquil spots in County Down.

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Frequently Asked Questions

Where are the Killowen Mountains located, and what lakes can be found there?

The Killowen Mountains are located in County Down, Northern Ireland, and are commonly referred to as the Mourne Mountains. This region is known for its granite peaks and heathered slopes, featuring both natural mountain loughs and significant man-made reservoirs. Notable lakes include Silent Valley Reservoir, Silent Valley Duck Pond, Blue Lough, Lough Shannagh, and Ben Crom Reservoir.

What are the most popular lakes to visit in the Killowen Mountains?

Among the most popular is Silent Valley Reservoir, a significant water supply for County Down and Belfast, offering well-kept paths and impressive engineering. Another favorite is Silent Valley Duck Pond, a calm, family-friendly spot with picnic benches and a play park. Visitors also appreciate the View of Carlingford Lough from Mourne AONB for its impressive vistas.

Are there family-friendly lakes or activities in the Killowen Mountains area?

Yes, Silent Valley Duck Pond is particularly family-friendly, featuring a calm pond, picnic benches, and a play park. The Silent Valley Reservoir also offers well-maintained walking trails suitable for various experience levels, making it a peaceful retreat for families.

What kind of natural features and viewpoints can I expect to see near these lakes?

The region offers diverse natural beauty, from the sweeping granite peaks and heathered slopes surrounding Silent Valley Reservoir to the tranquil setting of Red Bog Pond, which is ideal for wildlife watching. You can also find impressive vistas of Rostrevor National Park and the coast from viewpoints like the View of Carlingford Lough from Mourne AONB.

Are there hiking trails around the lakes in the Killowen Mountains?

Yes, the area around the lakes, especially Silent Valley Reservoir, features well-maintained walking trails like the Viewpoint Loop and Reservoir Loop. The wider Mourne Mountains area offers numerous hiking opportunities, with paths leading through dense forests and providing impressive views.

What outdoor activities can I do near the lakes in the Killowen Mountains?

Beyond walking around the lakes, the area is excellent for various outdoor activities. You can explore gravel biking routes such as 'The Old Oak Tree – Fairy Glen loop from Rostrevor' or 'Fairy Glen – Climb by Rostrevor Forest loop from Rostrevor' found in the Gravel biking around Killowen Mountains guide. Mountain biking is also popular, with trails like 'Rostrevor trails park loop' detailed in the MTB Trails around Killowen Mountains guide. For road cycling, routes like 'Kilbroney Park – Rostrevor Forest loop from Killowen' are available in the Cycling around Killowen Mountains guide.

Is parking available at the main lake attractions?

Yes, parking is available at key locations. For instance, Rostrevor Forest, which offers scenic trails and views of Carlingford Lough, has parking facilities. Silent Valley Reservoir also provides parking for visitors accessing its trails and facilities.

What is the best time to visit the lakes in the Killowen Mountains?

The Mourne Mountains, including the lake areas, are beautiful year-round. However, for hiking and outdoor activities, spring and autumn often offer pleasant temperatures and stunning scenery with fewer crowds. Summer is also popular, but can be busier. Always check local weather conditions before your visit, as paths can be slippery in wet weather.

Are there any unique natural features or 'hidden gems' among the lakes?

Beyond the well-known spots, Blue Lough is described as a picturesque mountain lake embedded in a wide trough valley, offering a perfect place to pause and appreciate the natural surroundings. Lough Shannagh is notable for its sandy beach located high up in the mountains, providing a unique and peaceful setting ideal for picnics.

What do visitors enjoy most about the lakes in the Killowen Mountains?

Visitors frequently highlight the tranquility and natural beauty of the area. The peaceful atmosphere of places like Silent Valley Reservoir and Silent Valley Duck Pond is often praised. Many also appreciate the well-maintained trails and the impressive views of the surrounding Mourne Mountains and Carlingford Lough.

Can I find cafes or pubs near the lakes in the Killowen Mountains?

While the immediate vicinity of some mountain lakes might be more remote, nearby towns and villages like Rostrevor and Kilkeel offer cafes, pubs, and accommodation options. Rostrevor Forest, which features scenic trails and views of Carlingford Lough, also has a cafe on-site.

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Still not found your perfect lake around Killowen Mountains? Check out the guides of these regions to see even more beautiful places.

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