Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Running trails & routes
United Kingdom
Wales
North Wales
Gwynedd
Ganllwyd

Beast of Brenin Trail

Moderate

182

runners

Beast of Brenin Trail

01:43

14.3km

290m

Running

The Beast of Brenin Trail is a moderate jogging route spanning 8.9 miles (14.3 km) with a challenging 961 feet (293 metres) of elevation gain, typically taking 1 hour and 43 minutes. You will navigate highly varied and technical terrain, including loose rocky climbs, gnarly descents, and sections featuring rock-drops and stone pitches. Despite the demanding sections, you will also find tranquil forest paths, particularly among majestic tall Douglas firs, and be rewarded with epic views of the Southern Snowdonia mountains.

When planning your visit, be aware that this route is primarily designed for expert mountain bikers, making it exceptionally challenging for jogging. The extreme technical difficulty, significant climbs, and potentially slippery surfaces mean it is not recommended for a typical jog. You can find convenient parking facilities at the Coed y Brenin Visitor Centre, which serves as a good starting point for this demanding adventure.

This trail is situated within the stunning Snowdonia National Park, offering a unique experience shaped by its primary use as a mountain biking route. Its design for mountain bikers means you will encounter a distinct type of terrain that sets it apart from other jogging trails. The combination of technical features and natural beauty makes it a notable route for those seeking a truly rugged and memorable outdoor challenge.

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Parking

Get Directions

1

6.42 km

Mostyn Cottage B&B and Self-Catering Cabins

Highlight • Rest Area

A brilliant adventure base right on the trails in Coed y Brenin Forest. You can rent one of the self-catering wooden chalets or stay in the B&B. The hosts are awesome, they run and cycle and will happily recommend routes, arrange guides and chat about the area. They can also arrange lifts if you want to do a point-to-point run. You'll find local guidebooks and maps waiting for you as well as some homemade cake. mostyncottage.co.uk

Tip by

2

6.97 km

Bridge Over the Afon Mawddach

Highlight • Bridge

A small spectacular bridge over the Afon Mawddach. It's used by several of the mountain bike trails as well as runners and walkers so keep an eye out. Great views in both directions, look out for people panning for gold in the river!

Tip by

3

14.1 km

Coed y Brenin Visitor Centre

Highlight • Parking

Coed y Brenin was Britain's first purpose-built mountain biking center and it remains one of the sport's top destinations.
Eight purpose-built mountain bike trails start at the visitor center and range from easy trails for families and beginners to technical trails for experienced mountain bikers. Other facilities for mountain bikers include a bike shop and a skills room where you can develop your riding techniques.
The visitor center is also the starting point for walking and running trails through the Coed y Brenin Forest Park, as well as orienteering courses and geocaching.
Two of the walking routes are suitable for visitors who use an off-road mobility scooter.
There are also children's play areas, a café and plenty of picnic tables.
(naturalresources.wales/days-out/places-to-visit/north-west-wales/coed-y-brenin-visitor-centre/?lang=en)

Translated by Google •

Tip by

B

14.3 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

7.90 km

4.64 km

1.36 km

327 m

Surfaces

4.74 km

2.68 km

2.61 km

2.11 km

1.68 km

405 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (230 m)

Lowest point (90 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Today

Wednesday 13 May

12°C

3°C

65 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Frequently Asked Questions

Is the Beast of Brenin Trail suitable for jogging?

No, the Beast of Brenin Trail is primarily designed as a challenging mountain biking route and is not recommended for jogging. Its extreme technical difficulty, significant climbs, and varied terrain make it exceptionally challenging and potentially dangerous for runners. While the Komoot tour data might categorize it for jogging, this specific trail is best experienced on a mountain bike.

What is the terrain like on this trail?

The terrain is highly varied and technical. You would encounter loose rocky climbs, gnarly descents, rock-drops, steps, and stone pitches. Sections can be 'pretty slippery' when wet. There are also sections of fire road, which can be long and steep, alongside fast-flowing singletrack with technical features.

Where can I park to access the trail?

The main access point for trails at Coed y Brenin, including the Beast of Brenin, is the Coed y Brenin Visitor Centre. Parking facilities are available there.

Are there any permits or entrance fees required for the trail or Snowdonia National Park?

There are no specific permits or entrance fees required to access the Beast of Brenin Trail itself or to enter Snowdonia National Park. However, parking at the Coed y Brenin Visitor Centre typically requires a fee.

What is the best time of year to visit Coed y Brenin for this trail?

The trail can be ridden year-round, but conditions vary significantly. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer can be busy but generally dry. Winter can bring challenging conditions, with sections becoming very slippery and potentially icy. Always check local weather forecasts before heading out.

Is the Beast of Brenin Trail dog-friendly?

While Coed y Brenin generally welcomes dogs, specific rules may apply to certain trails, especially given the technical nature of the Beast of Brenin. If you plan to bring a dog, ensure it is well-behaved, on a leash, and capable of handling extremely challenging terrain. It's always best to check the latest guidelines from the Coed y Brenin Visitor Centre.

What kind of views can I expect along the route?

The trail offers epic views of the Southern Snowdonia mountains. You'll pass through tranquil forest sections, particularly among majestic tall Douglas firs, and encounter rock-strewn slopes, showcasing the beauty of the Welsh landscape.

Does the trail intersect other well-known paths?

Yes, the route intersects with and shares sections of several other trails within Coed y Brenin, including the MBR, Temtiwr, Minor Taur, Cyflym Coch, Tarw, Buwch Bren, and the Pink Heifer. It also briefly crosses the National Cycle Network National Route 82.

Are there any facilities or amenities nearby?

Yes, the Coed y Brenin Visitor Centre offers various facilities, including a cafe, bike shop, and restrooms. For accommodation, Mostyn Cottage B&B and Self-Catering Cabins are nearby.

What makes the Beast of Brenin Trail so notable?

It's considered Coed y Brenin's longest and most demanding route, renowned for its comprehensive mix of features: monster climbs, bone-rattling descents, fast-flowing singletrack, rock-drops, steps, and stone pitch. It's a 'must-do' for many expert mountain bikers in the UK, designed to test both nerve and physical ability.

What are some key landmarks or features to look out for?

Beyond the challenging terrain, you'll cross the Bridge Over the Afon Mawddach. Keep an eye out for sections like the 'Pink Heifer, Big Doug combo' which offers over 4 kilometers of continuous singletrack through stunning firs.

Nearby routes

Hard

5.0

482

Pyg and Miners Track loop on Yr Wyddfa (Snowdon) from Pen-y-Pass — Trail Running in Eryri (Snowdonia)

02:11h

12.2km

680m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy