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Usk Reservoir

Routes
Hikes
Powys

Usk Reservoir

The best dog-friendly hikes and walks around Usk Reservoir

4.6

(497)

4,241

hikers

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hikes

Dog friendly hiking trails around Usk Reservoir are set within the Brecon Beacons National Park, featuring a large reservoir surrounded by Glasfynydd Forest. The landscape offers a mix of woodlands, open moorland, and waterside paths, with an elevation of 1,006 feet (307 meters) above sea level. Hikers can experience varied terrain and continuous views across the water towards the distant Black Mountains.

Best dog friendly hiking trails around Usk Reservoir

  • The most popular dog friendly hiking route is Fan Foel summit – Llyn y Fan Fawr loop from Usk Reservoir, a 12.8 miles (20.6 km) trail that takes 6 hours 13 minutes to complete. This difficult route includes significant elevation gain through varied mountain terrain.
  • Another top favourite among local hikers is Llyn y Fan Fawr – Fan Foel summit loop from Fforest Fawr, a difficult 16.3 miles (26.3 km) path. This route features extensive ascents and panoramic views across the Fforest Fawr area.
  • Local hikers also love the Fan Foel summit – Llyn y Fan Fawr loop from Moel Feity, a 9.1 miles (14.7 km) trail leading through mountain and moorland landscapes, often completed in about 4 hours 30 minutes.
  • Hiking around Usk Reservoir is defined by its scenic reservoir, surrounding woodlands, and open moorland, offering routes for both moderate and difficult ability levels.
  • The routes in Usk Reservoir are highly rated by the komoot community with an average score of 4.6 stars from over 490 reviews. More than 4000 hikers have used komoot to explore Usk Reservoir's varied terrain.

Last updated: July 8, 2026

5.0

(1)

3

hikers

#1.

Fan Foel summit – Llyn y Fan Fawr loop from Usk Reservoir

20.6km

06:14

650m

650m

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Hard

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

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Tips from the Community

Tiest
September 16, 2025, Viewpoint Over Steep Slope, Bannau Brycheiniog National Park

Ideal for a lap with human and animal

Translated by Googleβ€’

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The grassy way up - or down.

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Quite a tricky path. Easier up than down I reckon. I did it with a wonky arm so don’t worry too much.

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https://hoofhike.com/ πŸ‘ˆ

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Kinga
February 14, 2025, Fan Foel Summit

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take your time

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The views down onto Llyn Y Fawr from here is pretty spectacular. This is one of the nicest places in the Brecon Beacons to walk along. Once you have put in the effort to get here, the ridge has a good footpath, there's a nice walled shelter and the views down towards the lake is pretty awesome on a good day.

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Ahhhh Llyn Y Fan Fawr, this glaciated lake is about the nicest place you can be on a hot summers day or even a cold winter's morning. It has been central to my working life in the hills for nearly forty years. It is just so perfectly locacted and makes for a good check point with groups, a rest spot, a camping spot and a perfect wild swimming spot on a hot day. Don't listen to the naysayers, this has been an iconic wild swimming spot for eons. Apart from that it will be a tad cold, it is just about one of the best swim spots in the Brecon Beacons.

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Frequently Asked Questions

How many dog-friendly hiking trails are available around Usk Reservoir?

There are 3 dog-friendly hiking trails around Usk Reservoir featured in this guide. These include one moderate route and two more challenging options for experienced hikers and their dogs.

Are there circular dog walks around Usk Reservoir?

Yes, the Usk Reservoir area is well-known for its circular routes, making it ideal for dog walks where you can start and end at the same point. For a challenging circular option, consider the Fan Foel summit – Llyn y Fan Fawr loop from Usk Reservoir, which covers over 20 km. You can find details for this route here: Fan Foel summit – Llyn y Fan Fawr loop from Usk Reservoir.

What are the difficulty levels of dog-friendly hikes in the Usk Reservoir area?

The dog-friendly hikes around Usk Reservoir range from moderate to difficult. There is one moderate route, the Fan Foel summit – Llyn y Fan Fawr loop from Moel Feity, which is approximately 14.6 km long. For those seeking a greater challenge, there are two difficult routes available.

What kind of natural features can I expect to see on dog walks around Usk Reservoir?

You and your dog can enjoy a diverse landscape featuring the scenic 280-acre Usk Reservoir itself, surrounded by lush Glasfynydd Forest. Trails offer a mix of charming woodlands, open moorland, and waterside paths, often providing continuous views of the water and the distant Black Mountains escarpment. The area's elevation at 1,006 feet (307 meters) above sea level contributes to these varied vistas.

What is the best time of year to hike with my dog around Usk Reservoir?

Usk Reservoir offers beautiful hiking opportunities year-round. While the trails can be wet and muddy after rain, especially in autumn and winter, proper footwear is always recommended. Spring and summer bring lush greenery, while autumn offers stunning foliage. The remote location also provides excellent opportunities for stargazing on clear nights.

Are there any facilities like toilets or cafes near the dog-friendly trails?

While Usk Reservoir is a remote location, there are picnic areas scattered throughout for visitors. For more extensive facilities like cafes or pubs, you would typically need to venture a short distance from the immediate reservoir area into nearby villages or towns.

Is there parking available for dog walkers at Usk Reservoir?

Yes, parking is available at Usk Reservoir, making it convenient for accessing the various trails with your dog. Specific parking areas are usually signposted near popular trailheads, including spots near the dam for shorter loops.

What wildlife might I spot while hiking with my dog in this area?

The Usk Reservoir area is rich in wildlife. Keep an eye out for various bird species, including the majestic red kite, which is often seen soaring overhead. The diverse habitats of woodland and open moorland support a range of other local fauna.

How long do the dog-friendly walks around Usk Reservoir typically take?

The duration of dog walks varies depending on the route and your pace. For example, the moderate Fan Foel summit – Llyn y Fan Fawr loop from Moel Feity, at 14.6 km, typically takes around 4.5 hours. More challenging routes, like the 26.2 km Llyn y Fan Fawr – Fan Foel summit loop from Fforest Fawr, can take over 8 hours to complete.

What do other hikers enjoy most about the dog-friendly trails around Usk Reservoir?

The area is highly rated by the komoot community, with an average score of 4.64 stars. Reviewers often praise the stunning natural beauty, the peaceful and remote atmosphere, and the diverse terrain that makes for engaging walks with their dogs. The continuous views of the reservoir and the Black Mountains are frequently highlighted as a favorite aspect.

Are there any longer, more challenging dog-friendly routes for experienced hikers?

Absolutely. For experienced hikers and their dogs, there are challenging routes that offer significant elevation gain and longer distances. An example is the Llyn y Fan Fawr – Fan Foel summit loop from Fforest Fawr, which spans over 26 km with more than 1000 meters of elevation gain, providing a strenuous but rewarding adventure.

Most popular routes around Usk Reservoir

Hiking around Usk Reservoir

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