4.5
(8)
987
runners
83
runs
Jogging around Corris offers diverse landscapes within the Dyfi Forest and the UNESCO Dyfi Biosphere Reserve. The region features varied terrain, from gentle forest paths to challenging mountain trails. Notable natural features include the expansive Dyfi Forest, the prominent Cadair Idris mountain, and the scenic Llyn Myngul (Tal-y-Llyn Lake). This area provides a range of running experiences, from flatter lakeside routes to significant elevation gains on hills and mountains.
Last updated: April 25, 2026
58.1km
08:13
2,750m
2,760m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
31
runners
7.04km
00:44
50m
50m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
11
runners
11.6km
01:24
300m
300m
Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.
9
runners
5.42km
00:34
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The walk to bag the 633m summit of Tarrenhendre is not as popular or busy as those on its more famous neighbour on Cadair Idris, but you do get a nice, lovely, scenic and historic walk out of it. There are nice views to be had from the summit too. If you want to add another hill to your tally, then you can easily extend your walk to take in nearby Tarren y Gesail.
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the hills will wear you down and the trails may be blocked but don't let that stop you
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beautiful little spot for easy accesses up the wonderful hills. parking fee payable to the hotel £5/day (only), £10/24hours (night)
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Stayed at The Wynnstay, perfect place to prepare for starting the Traws Eryri the following day...
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A former slate village with a certain type of raw beauty, Corris is a little tourist honeypot. It is set within the Dyfi Forest and boasts a few attractions such as a craft centre, a centre for alternative technology, along with a narrow-gauge railway and museum. Ohhh did I mention bike trails? It has a never ending supply of them!
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Machynlleth is a very popular, pretty and historic market town at the head of the beautiful Dyfi estuary. It is a mecca for its never ending supply of bike trails. It is also an ideal base for exploring the neighbouring countryside. The Dyfi Valley, Snowdonia National Park, Tal-y-Llyn Railway, Clywedog Reservoir, the Vale of Rheidol Railway and Devil's Bridge gorge are all within easy reach of Machynlleth.
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Can be quite wet the ground after heavy rain so be careful. Waterproof boots are advised
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There are over 85 diverse running routes around Corris, offering a wide range of experiences from easy loops to challenging mountain trails. The komoot community has explored these routes extensively, with over 1000 runners using the platform to discover the area.
Yes, Corris offers some easier running options. While many routes involve varied terrain, you can find paths suitable for beginners. For example, the Tal-y-llyn Lake loop from Llyn Mwyngil is a moderate 3.4-mile (5.4 km) route that provides a scenic and relatively flat experience around the lake.
Many of the running trails around Corris are circular, allowing you to start and finish at the same point. For instance, the Machynlleth Golf Course Road loop from Machynlleth is a popular moderate 4.4-mile (7.0 km) circular path, often completed in about 44 minutes.
The running trails near Corris offer a rich variety of terrain. You'll find dense woodlands within the Dyfi Forest, challenging mountain ascents like those leading to Cadair Idris, and picturesque lakeside paths around Llyn Myngul. The area is part of the UNESCO Dyfi Biosphere Reserve, ensuring stunning natural landscapes for your run.
Absolutely. The region is rich in natural beauty. While running, you might encounter stunning views from summits like Penygadair summit, Cadair Idris, or enjoy the tranquility of lakes such as Llyn Cau and Llyn Cynwch. The Dyfi Forest itself provides a beautiful, shaded environment.
Many of the trails in the Dyfi Forest and surrounding areas are suitable for running with dogs, especially those that follow public footpaths and bridleways. However, it's always advisable to keep dogs on a lead, particularly in areas with livestock or near nature reserves like Abercorris, to protect wildlife and ensure safety.
For experienced runners seeking a challenge, Corris offers demanding routes with significant elevation. The Corris Round is a substantial 36.1-mile (58.1 km) trail with varied terrain, including hills and steep sections. Another challenging option is the Cadair Idris summit loop from Mach loop west car park, an 8.8-mile (14.2 km) mountainous trail.
The running routes in Corris are highly rated by the komoot community, with an average score of 4.5 stars from over 8 reviews. Runners often praise the diverse landscapes, from the quiet forest paths to the rewarding mountain views, and the variety of options available for different fitness levels.
While some routes are challenging, there are options suitable for families, especially those looking for shorter, less strenuous runs. Paths around Llyn Myngul or within the flatter sections of Dyfi Forest can be enjoyable for families. Always check the route difficulty and length to ensure it matches your family's capabilities.
Parking is generally available at key access points for popular trails. For routes like the Cadair Idris summit loop, specific car parks such as the Mach loop west car park are designated starting points. For other trails, look for public car parks in Corris or Machynlleth, or smaller lay-bys near trailheads. Always park responsibly and considerately.
After your run, Corris offers several unique attractions. You could explore the local crafts at the Corris Craft Centre, delve into the area's mining history at Corris Mine Explorers or King Arthur's Labyrinth, or take a scenic ride on the Corris Railway. For more information on the area, you can visit Visit Mid Wales.
The duration of running routes in Corris varies significantly based on distance and difficulty. Shorter, moderate loops like the Machynlleth Golf Course Road – Cwm Llinos loop (7.2 miles / 11.6 km) might take around 1 hour 24 minutes. More challenging mountain runs, such as the Cadair Idris summit loop, can take over 2 hours 40 minutes, while ultra-runs like The Corris Round can take over 8 hours.
Corris is an excellent destination for trail running. Its location within the Dyfi Forest and the UNESCO Dyfi Biosphere Reserve provides varied terrain, from soft forest floors to challenging mountain paths. The area's natural features, including Cadair Idris and numerous hills, make it ideal for those seeking a true trail running experience with diverse landscapes and elevation changes.


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