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Routes
Mountain biking trails
United Kingdom
Wales
South Wales
Carmarthenshire
Llanfair-Ar-Y-Bryn

Doethie Valley and Llyn Brianne loop

Routes
Mountain biking trails
United Kingdom
Wales
South Wales
Carmarthenshire
Llanfair-Ar-Y-Bryn

Doethie Valley and Llyn Brianne loop

Intermediate

5.0

(1)

11

riders

Doethie Valley and Llyn Brianne loop

03:09

33.9km

770m

Intermediate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is right next to a parking lot.

Last updated: May 31, 2024

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Waypoints

A

Start point

Parking

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1

992 m

Gwenffrwd-Dinas Nature Reserve

Highlight • Cave

This attractive RSPB site has a circular footpath adjacent to a river with beautiful rock cascades and old mossy trees. It is also home to the Twm Sion Cati's cave. All worth a look off of the bike.

Tip by

2

16.1 km

Llyn Brianne Gravel Road

Highlight • Cycleway

The wide and easy gravel road snakes around the western shores of the Llyn Brianne Reservoir, which dates back to the late '60s to service Swansea and Neath.

Tip by

B

33.9 km

End point

Parking

Way Types & Surfaces

Way Types

13.7 km

11.6 km

8.63 km

Surfaces

20.2 km

11.3 km

1.72 km

706 m

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Elevation

Elevation

Highest point (410 m)

Lowest point (130 m)

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Weather

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Today

Wednesday 5 November

15°C

11°C

70 %

If you start your activity now...

Max wind speed: 20.0 km/h

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This route was planned by komoot.

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How to understand each route’s difficulty level

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Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Expert
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Road Bike

Running

Easy
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Corresponds approx.to SAC 1.
Intermediate
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Corresponds approx. to SAC 2-3.
Expert
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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