Llyn Syfaddan (Llangorse Lake) loop
Llyn Syfaddan (Llangorse Lake) loop
4.0
(1)
20
hikers
05:16
18.0km
460m
Hiking
This difficult 11.2-mile Llyn Syfaddan (Llangorse Lake) loop offers panoramic views and a substantial workout in Brecon Beacons National Par
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
3.35 km
Highlight • Natural Monument
Tip by
4.41 km
Highlight • Lake
6.13 km
Highlight • Trail
Tip by
9.49 km
Highlight • Settlement
Tip by
13.3 km
Highlight • Summit
Tip by
15.4 km
Highlight • Lake
Tip by
18.0 km
End point
Parking
Way Types & Surfaces
Way Types
10.1 km
3.00 km
1.94 km
1.63 km
900 m
260 m
230 m
Surfaces
7.69 km
5.53 km
2.25 km
1.07 km
767 m
754 m
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Elevation
Highest point (410 m)
Lowest point (150 m)
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Weather
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Today
Wednesday 6 May
13°C
4°C
46 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
You'll find car parks near the main lake access points. The village of Llangorse also provides parking options, often close to amenities like pubs and tearooms.
Yes, the trail is generally dog-friendly. Please keep your dog under close control, especially around livestock and wildlife, and be mindful of any local signage regarding leashes, particularly in sensitive areas or during nesting seasons.
The trail is enjoyable year-round, but spring and autumn are particularly pleasant due to milder temperatures and beautiful scenery. Spring offers wildflowers and birdlife, while autumn provides vibrant foliage. Be prepared for potentially boggy sections, especially after rain, regardless of the season.
No, there are no general permits or entrance fees required to access the trails within Bannau Brycheiniog (Brecon Beacons) National Park, including the Llyn Syfaddan (Llangorse Lake) loop. However, some private car parks may charge a fee.
The terrain varies significantly. While some sections offer easy, level paths along the lake shore, other parts involve sharp ascents and descents, particularly when climbing towards Mynydd Llangorse. Expect a mix of well-trodden paths, forested sections, and potentially boggy areas, especially after wet weather.
The route offers stunning views of Llangorse Lake itself, the largest natural lake in South Wales. From higher points like Allt-yr-Esgair or Mynydd Llangorse, you'll get panoramic vistas of the Usk Valley, the Black Mountains, and even distant views of Pen-y-Fan. Keep an eye out for the historic Crannog, an ancient artificial island dwelling in the lake.
Llangorse Lake is a haven for wildlife, particularly birds, with over 200 species recorded. You might spot great crested grebes, reed warblers, coots, and even red kites or ospreys. The area is also rich in diverse water plants and shoreline flora, including Heath Spotted Orchids in the water meadows.
Yes, the route also passes through sections of the Beacons Way, Heol Las, and the Via Julia.
Yes, the area around Llangorse Lake offers amenities. You'll find car parks, a café, and toilets, particularly near the main lake access points. The village of Llangorse also has options for refreshments, including pubs and tearooms.
The full 18 km loop is considered difficult and requires very good fitness, making it less suitable for beginners or young children. However, shorter, easier loops around the lake shoreline (around 6 km) are available and are much more suitable for families and those seeking a less strenuous walk.
Given the varied terrain and potential for boggy sections, sturdy waterproof hiking boots are highly recommended. Bring layers of clothing suitable for changing weather conditions in the Brecon Beacons, plenty of water, snacks, and a map or GPS device. Binoculars would be great for birdwatching!