Best lakes around Tollymore Park offers a diverse landscape at the foot of the Mourne Mountains, characterized by its ancient trees and winding rivers. While large, named lakes are not the primary feature within the park itself, the area is known for its picturesque water features, including the Shimna River and various smaller loughs. The region provides a tranquil setting for exploring natural beauty and historic structures.
Last updated: May 17, 2026
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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 very beautiful castle in the forest
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The Blue Lough is a picturesque mountain lake embedded in a wide trough valley in the southern Mournes. It's the perfect place, to pause, catch your breath, and enjoy the impressive nature.
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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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Silent Valley Reservoir marks the first point of interest on the sensational Mourne Wall Challenge. Enjoy dazzling views across the still waters and up to the mountaintops of the Mournes.
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While Tollymore Forest Park is primarily known for its rivers like the Shimna and smaller water bodies, the surrounding area features several impressive lakes. These include Blue Lough, a picturesque mountain lake, and Silent Valley Reservoir, a peaceful retreat with striking engineering. You can also find Sandy beach at Lough Shanna, a unique sandy shore high in the mountains.
Yes, several spots are suitable for families. Silent Valley Reservoir offers well-kept paths and a tranquil environment. Additionally, the area around Castlewellan Castle, which overlooks a lake, provides trails for walking and cycling, and the Castlewellan Peace Maze is a fun activity for all ages.
The region offers a diverse landscape. At Blue Lough, you'll find a mountain lake embedded in a wide trough valley. Silent Valley Reservoir is surrounded by sweeping granite peaks and heathered slopes. Within Tollymore Forest Park itself, the Shimna River features rocky beds, tree-lined banks, and cascades, while the park also has a duck pond.
Yes, the area boasts historical significance. Castlewellan Castle, an ornate Scottish baronial castle built in 1858, offers a grand view over Castlewellan Lake. Within Tollymore Forest Park, you can find historic stone bridges along the Shimna River, some dating back over 200 years.
The area is excellent for various outdoor activities. You can enjoy hiking on trails like the Tollymore Forest River Trail or the Mountain and Drinns Trail. Mountain biking is popular with routes such as the Castlewellan MTB Trails. Cycling options include scenic loops like the View of Tollymore Forest. For more details on routes, visit the Hiking around Tollymore Park, MTB Trails around Tollymore Park, and Cycling around Tollymore Park guides.
While some visitors take dips in natural pools along the Shimna River within Tollymore Forest Park, particularly near the Hermitage and Foley's Bridge, these areas are not officially monitored for swimming. Swimming is generally not permitted in designated reservoirs like Silent Valley or in Castlewellan Lake. Always exercise caution and check local regulations before entering any water.
The Tollymore area is beautiful year-round. Spring brings fresh greenery and blooming flora, while autumn offers stunning foliage, particularly along the tree-lined rivers. Summer is ideal for longer walks and enjoying the outdoors. Even in winter, the landscape has a unique, tranquil charm, especially around the serene Silent Valley Reservoir.
The area offers a range of difficulties. Within Tollymore Forest Park, trails like the Tollymore Forest River Trail are considered easy. For those seeking more challenge, the Mourne Mountains, where lakes like Blue Lough and Sandy beach at Lough Shanna are located, offer intermediate to difficult hikes with significant elevation changes.
Tollymore Forest Park is generally dog-friendly, with many trails suitable for walks with your canine companion, provided they are kept under control. The Castlewellan Peace Maze is also listed as dog-friendly. Always check specific park rules and signage regarding dogs, especially around wildlife or livestock.
The Shimna River in Tollymore Forest Park is a haven for wildlife, including birds like dippers and kingfishers, as well as otters. The park's duck pond also provides a habitat for various waterfowl. The broader Mourne Mountains area, including the lakes, supports diverse birdlife and other native species.
Tollymore Forest Park has visitor facilities, including a cafe. For other lakes like Silent Valley Reservoir, there are visitor amenities on-site. Castlewellan Forest Park, home to Castlewellan Lake, also offers facilities. For more extensive options, the nearby towns like Newcastle provide a wider range of cafes, pubs, and accommodation.
Tollymore Forest Park has designated car parks. Check the official nidirect.gov.uk website for current information on parking and any fees. Silent Valley Reservoir also has visitor parking. Public transport options to the immediate vicinity of some mountain lakes might be limited, so planning is advised. Castlewellan Forest Park is also accessible by car with parking available.


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