4.5
(5120)
47,718
hikers
27
hikes
Dog friendly hiking trails around Merthyr Tydfil offer access to diverse landscapes at the southern edge of the Bannau Brycheiniog (Brecon Beacons) National Park. The region features wild moorland, high peaks, and a network of trails traversing river valleys and forested areas. Numerous reservoirs, such as Llwyn-on and Pontsticill, provide scenic waterside routes. Hills like Cefn Cil-Sanws offer elevated views across the surrounding terrain.
Last updated: May 16, 2026
4.7
(3)
23
hikers
11.6km
03:19
290m
290m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(4)
31
hikers
7.18km
01:59
120m
120m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Sign up for free
4.7
(3)
26
hikers
9.72km
02:49
240m
240m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(5)
14
hikers
14.6km
04:26
470m
470m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
11
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Torpantau Tunnel is a closed-down, 666-yard-long abandoned masonry railway tunnel in Wales that was opened in 1863 and closed down in 1963. It was part of the Brecon and Merthyr Railway line and, at 1,313 feet above sea level, was the highest tunnel on the UK railway network. Now it is disused but is often used as part of team building and adventure walks by local activity providers. If you are thinking of using it, you will need wellingtons (which will just about keep you dry) and a head torch. It is a brilliant place to lead a group of kids through and jump out to scare them half to death.
0
0
Pant y Creigiau is a 565-metre trig-pointed summit in what is locally called the 'Glyn' area of the Brecon Beacons, which is the area between Talybont-on-Usk and Pontsticill villages. It is a moderate walk to get to it from either the Blaen-y-Glyn car park or some easy roadside parking. There are panoramic views of the Talybont Reservoir and surrounding peaks from the top.
0
0
Pentwyn Reservoir is the smaller sister to Pontsticill Reservoir, both being separated by a causeway going towards the old Dolygaer outdoor centre. It is a very popular spot with fishermen and outdoor enthusiasts alike. The reservoir is used daily for a mix of watersports such as paddle boarding, kayaking, canoeing and raft building. It is in a beautiful setting, and you have great views north towards Pen y Fan and nice walks nearby.
0
0
One of my favourite places in the Beacons for cycling or hammock camping.
0
0
There are over 25 dog-friendly hiking trails around Merthyr Tydfil, offering a variety of distances and difficulties suitable for you and your canine companion. These routes are highly rated by the komoot community, with an average score of 4.4 stars from over 2,100 reviews.
Yes, Merthyr Tydfil offers several easy dog-friendly walks. For example, the Pentwyn Reservoir loop from Dol-y-gaer is an easy 7.2 km route, perfect for a relaxed stroll with your dog. Many reservoir paths, like those around Llwyn-on Reservoir, also provide gentle, accessible options.
The terrain varies widely, from well-maintained paths around reservoirs like Pontsticill and Llwyn-on, to more rugged trails in the Brecon Beacons foothills. You'll encounter river valleys, forested sections, and open moorland. Some routes, such as the Cefn Tarenni Cochion – Pant y Creigiau Summit loop, involve moderate ascents and descents.
Yes, many dog-friendly routes in Merthyr Tydfil are circular, allowing for varied scenery without retracing your steps. The Pentwyn Reservoir loop and the Pant y Creigiau Summit – Cefn Tarenni Cochion loop are excellent examples of circular trails. Pontsticill Reservoir also offers popular circular walks.
You and your dog can explore a variety of natural and historical landmarks. Many trails offer views of the Bannau Brycheiniog (Brecon Beacons) National Park, including distant glimpses of Pen y Fan. You'll also encounter picturesque reservoirs like Pontsticill Reservoir and Llwyn-on Reservoir Dam. The historic Pontsarn Viaduct and the remains of Morlais Castle are also notable points of interest along some routes.
Absolutely. Trails leading to summits or higher ground often provide stunning panoramic views. The Cefn Tarenni Cochion – Pant y Creigiau Summit loop offers rewarding vistas. Additionally, Cefn Cil-Sanws, located just above Merthyr Tydfil, provides incredibly peaceful hiking with extraordinary views towards the Brecon Beacons, including Pen y Fan.
Spring and autumn are particularly pleasant for hiking in Merthyr Tydfil, with vibrant foliage and comfortable temperatures. Summer offers longer daylight hours, but trails can be busier. Winter walks can be beautiful, especially around the reservoirs, but be prepared for potentially muddy or icy conditions, particularly at higher elevations.
When hiking with your dog, especially in or near the Bannau Brycheiniog (Brecon Beacons) National Park, it's important to keep them under close control, particularly around livestock. Many areas are working farmland. Always carry water for your dog, and be mindful of ground nesting birds during spring and early summer. Some trails may have stiles that require lifting your dog over.
Many popular trailheads and visitor centers, such as Garwnant Visitor Centre and areas around the reservoirs (e.g., Pontsticill and Llwyn-on), offer dedicated parking facilities. It's always advisable to check specific route details on komoot for parking information relevant to your chosen starting point.
Merthyr Tydfil and its surrounding villages have a growing number of dog-friendly establishments. While specific recommendations depend on your chosen route, many local pubs and cafes welcome well-behaved dogs, especially those with outdoor seating. It's always a good idea to check with the establishment beforehand.
Among the longer dog-friendly options, the View of Talybont Reservoir loop from wild camp covers approximately 16.6 km, offering a substantial outing for you and your dog. Another notable route is the Twyn Brynbychan Trig Point – Giant's Bite loop from Mountain Ash, which is around 14.6 km.
Yes, many of the easier and moderate trails are suitable for families with dogs. The reservoir walks, such as the Llwyn-on Reservoir loop, are generally flat and well-maintained, making them ideal for a family outing. Garwnant Visitor Centre also offers various walking trails with play areas, perfect for families with children and dogs.


Browse the best Hikes in other regions.