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Routes
Mountain biking trails
United Kingdom
Wales
North Wales
Gwynedd
Ganllwyd

Beast of Brenin Trail

Hard

4.8

(34)

806

riders

Beast of Brenin Trail

02:30

25.2km

540m

Mountain biking

Get ready for a demanding mountain biking adventure on the Beast of Brenin Trail, a difficult route spanning 15.7 miles (25.2 km). You will climb a significant 1784 feet (544 metres) over approximately 2 hours and 29 minutes, pushing your limits through varied terrain. As you ride, expect to be…

Last updated: April 23, 2026

Tips

Includes a segment in which cycling is not permitted

After 8.06 km for 1.31 km

Waypoints

A

Start point

Parking

Get Directions

1

1.74 km

The Slipway

Highlight (Segment) • Trail

Great place to build some confidence for doing berms and corners at higher speeds.

There's loads of line options and lots of space to prepare for each turn.

This section …

Tip by

2

6.83 km

Pistyll Cain Waterfall

Highlight • Viewpoint

You’ll find this waterfall just below Pont Gwyn-fynydd and National Cycle Route 82 in Coed-y-Brenin forest. It’s worth leaving the trail to see these falls as they crash 65 feet …

Tip by

3

9.74 km

Found on the red-rated Dragon's Back trail and the black Beast, Gomez is the first of several trail sections that makes up the Adams Family.

You'll descend 108 feet (33 …

Tip by

4

10.4 km

Morticia (Red) Trail

Highlight (Segment) • Forest

This trail, belonging to the 'Adams Family' descents, is a little smoother and more flowy.

Having said this, there are some sneaky little features, which can catch you out at speed. Best to recce this one before going full gas!

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5

10.9 km

Pugsley Trail

Highlight (Segment) • Forest

A rocky yet flowy singletrack trail section, with a potentially tricky ending through Pugsley's Bottom.

This trail section is part of the 'Adams Family'.

Tip by

6

11.7 km

Lurch (Red) Singletrack Descent

Highlight (Segment) • MTB Park

Part of the 'Adams Family', this singletrack descent is essentially one long rock garden!

It's really great fun but potentially a bit hazardous in the wet, so take care.

Tip by

7

12.1 km

Part of the 'Adams Family', this is one of the best red-rated descents in the Coed y Brenin park: fast and flowy with features to pop off of all the way down!

Tip by

8

13.9 km

Pink Heifer Trail

Highlight (Segment) • Trail

Brilliant red-rated trail, mostly descending before a tricky little stream crossing when wet! Enjoy the flow on this one, there's no wonder why it's such a favourite among visitors here.

Tip by

9

15.5 km

Dragon's Back and Beast Trail, Coed y Brenin

Highlight (Segment) • MTB Park

A long section of singletrack trail on the Dragon's Back & Beast trails. It climbs, contours and descends with fast & flowy and some surprising techy sections, both up and …

Tip by

B

25.2 km

End point

Parking

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Way Types & Surfaces

Way Types

14.8 km

7.94 km

863 m

831 m

812 m

Surfaces

12.1 km

4.97 km

3.83 km

3.44 km

607 m

336 m

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Elevation

Elevation

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

Highest point (300 m)

Lowest point (50 m)

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Weather

Powered by Foreca

Saturday 9 May

13°C

3°C

0 %

Additional weather tips

Max wind speed: 21.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Beast of Brenin Trail?

The Beast of Brenin Trail starts and finishes at the main visitor center in Coed y Brenin Forest Park. There is ample parking available there, though charges may apply. This is also where you'll find facilities like bike hire, a cafe, and toilets.

Is the Beast of Brenin Trail suitable for all mountain bikers?

No, this trail is graded black and is considered the most demanding route at Coed y Brenin. It requires a high level of fitness and skill due to its challenging climbs and technical descents. There's even an intentionally tricky initial section designed to test riders and deter those less capable from attempting the full route. If you're looking for something less intense, Coed y Brenin offers other trails that might be more suitable.

What kind of terrain can I expect on the trail?

Expect a highly varied and technical terrain. You'll encounter 'monster climbs' and 'bone rattling descents' with features like loose rocky climbs, gnarly descents, stone fly-offs, berms, tabletops, and hips. There are also sections of fast-flowing singletrack, rock-drops, steps, and stone pitch. Surfaces can be loose, uneven, or muddy, with significant rocks and re-armored sections. Specific sections like the 'Adams Family stages' (Gomez, Morticia, Uncle Fester) are known for their rocky and flowing characteristics.

What are the notable features and views along the route?

The trail offers breathtaking 'epic views of the Southern Snowdonia mountains' as you traverse through emerald green forests. You'll pass by highlights such as Pistyll Cain Waterfall, and ride through sections known as Gomez Trail (Red) – Dragon's Back, Morticia (Red) Trail, Pugsley Trail, and Uncle Fester Trail. The 'Pink Heifer, Big Doug combo' offers over 4 kilometers of continuous singletrack.

How long does it typically take to complete the Beast of Brenin Trail?

While the trail is approximately 25 kilometers long, it's very demanding. It can take anywhere from 3 to 6 hours to complete, depending on your fitness level, skill, and trail conditions. It often feels significantly longer and more challenging than its statistics suggest.

When is the best time of year to ride the Beast of Brenin Trail?

The trail is generally open year-round, but the best time to visit is typically during the drier months from late spring to early autumn (May to October). During these periods, the trails are less likely to be muddy, offering better grip and a more enjoyable experience. Always check local weather conditions before you go, as Wales can be unpredictable.

Does the trail connect with other routes in Coed y Brenin?

Yes, the Beast of Brenin Trail integrates sections from other well-known routes within Coed y Brenin. You'll find it overlaps with parts of the MBR and Dragon's Back trails. Other official trails you might encounter along the route include Cyflym Coch, Minor Taur, Temtiwr, Pink Heifer, Buwch Bren, Dream Time, and Uncle Fester, among many others.

Is the Beast of Brenin Trail dog-friendly?

While Coed y Brenin Forest Park generally welcomes dogs, specific rules apply to mountain biking trails. Dogs are usually permitted on a lead on walking trails, but it's often recommended that dogs do not accompany riders on technical mountain bike trails like the Beast of Brenin for safety reasons. Always check the latest regulations at the visitor center upon arrival.

Are there any permits or entrance fees for riding in Coed y Brenin Forest Park?

There are no specific permits or entrance fees required to ride the mountain bike trails themselves in Coed y Brenin Forest Park. However, there is a charge for parking at the main visitor center, which helps maintain the facilities and trails. Make sure to pay for parking upon arrival.

What should I bring for a ride on this trail?

Given the demanding nature of the Beast of Brenin, good preparation is key. You should bring adequate fluids, sufficient food, appropriate clothing layers for varying weather, a well-maintained mountain bike, a helmet, and essential tools and spares (e.g., puncture repair kit, pump, multi-tool). A first-aid kit and navigation device are also highly recommended.

Are there easier or family-friendly mountain biking options nearby?

Absolutely! Coed y Brenin Forest Park is renowned for its range of trails catering to all abilities. If the Beast of Brenin is too challenging, you'll find several easier, family-friendly, and beginner-suitable trails within the park. These are well-signposted from the visitor center and offer a great introduction to mountain biking in a beautiful forest setting.

Nearby routes

Hard

4.8

806

Beast of Brenin Trail

02:30h

25.2km

540m

Trail Reviews

All Mountain Guided Rides
August 22, 2022, Coed-y-Brenin Trails - Day Two

Nice little ride out, but I forgot how much of a slog (for little Cheryl) the Dragonback Trail would be. Lots of fire road climbing with some techy rocky and tooth sections. Weather a bit hit and miss. No heavy rain just a steady drizzle.

Ben
April 10, 2025, Red Dragon

Red rated trail around the beautiful Coed y Brenin trail centre

Glorious in the sunshine today round the beast trail at coed Y Brennin. unfortunately no photos, I was to busy enjoying myself

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