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Mountain biking trails

Blue Rock Descent – Crickhowell Bridge loop from Llanfrynach

Mountain biking trails

Blue Rock Descent – Crickhowell Bridge loop from Llanfrynach

Hard

8

riders

Blue Rock Descent – Crickhowell Bridge loop from Llanfrynach

05:06

66.2km

1,250m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.

Last updated: August 13, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 21.0 km for 1.47 km

Waypoints

A

Start point

Bus stop

1

10.9 km

Mount Troed

Highlight (Segment) • Viewpoint

A somewhat grind-y climb, which then turns into an excellent and rewarding tussocky descent. It can get somewhat gloopy when the weather's poor, mind you.

Tip by

2

22.5 km

Grwyne Fawr Valley Trail

Highlight (Segment) • Trail

A long, languid, occasionally rocky descent along the Grwyne Fawr. It's a great reward for the ride and push up Y Das if you're riding it as a descent. As a climb, it's perfectly possible too.

Tip by

3

25.4 km

Grwyne Fawr Bothy

Highlight • Mountain Hut

Grwyne Fawr bothy is a wonderful place to spend the night. On the banks of the reservoir, and nestled between the hills that give it its name, it's a perfectly …

Tip by

4

26.8 km

Climb to Grwyne Fawr Reservoir

Highlight • Climb

Fantastic climb to the reservoir fairly tough on the gravel bike with rough sections. stunning scenery back down the valley and as you approach the reservoir!! The climb above, to …

Tip by

31.7 km

Mynydd Du Forest

Forest

6

42.9 km

Blue Rock Descent

Highlight (Segment) • Trail

Beginners rocky descent and climb.

Tip by

7

45.8 km

Coed Cefn Woodland Walk

Highlight • Trail

Coed Cefn is an ancient woodland with a rich historical past: there is an iron age hillfort in the centre and a few non-native conifers remain hinting at the woodland's …

Tip by

8

48.0 km

Crickhowell Bridge

Highlight • River

Crickhowell bridge is a pretty crossing point of the River Usk.

Crickhowell itself is a small market town with the remains of a motte and bailey castle built by the Normans.

Tip by

9

51.5 km

Valley View in Bannau Brycheiniog National Park

Highlight • Forest

58.6 km

Blaenllynfi Castle

Archaeological Site

59.8 km

The Plantation

Forest

B

66.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

40.3 km

11.4 km

11.1 km

2.23 km

1.06 km

< 100 m

Surfaces

27.1 km

15.8 km

13.3 km

5.29 km

2.94 km

1.76 km

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Elevation

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

Highest point (690 m)

Lowest point (70 m)

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Weather

Powered by Foreca

Thursday 8 October

16°C

8°C

90 %

Additional weather tips

Max wind speed: 32.0 km/h

to get more detailed weather forecasts along your route

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