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Carmarthenshire

Llanfair-Ar-Y-Bryn

View of Llyn Brianne – Llyn Brianne Dam loop from RSPB Gwenffrwd-Dinas

Carmarthenshire

Llanfair-Ar-Y-Bryn

View of Llyn Brianne – Llyn Brianne Dam loop from RSPB Gwenffrwd-Dinas

Hard

3

riders

View of Llyn Brianne – Llyn Brianne Dam loop from RSPB Gwenffrwd-Dinas

04:54

63.7km

1,320m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: September 24, 2026

Waypoints

A

Start point

Parking

1.22 km

Dinas

Forest

2

1.37 km

RSPB Gwenffrwd-Dinas Nature Reserve

Highlight • Forest

This charming RSPB site is not far from Llyn Brianne and is home to Twm Sion Cati's cave. You'll find a great circular footpath running nearby the river, boasting beautiful …

Tip by

3

15.0 km

Cwm Berwyn

Highlight (Segment) • Viewpoint

Nice little section of fire road through managed forest. Good surface, I managed on 33mm tyres. Some good log piles for photos! Lovely view behind you after you climb out of the trees.

Tip by

4

48.4 km

Dolgoch Hostel

Highlight • Mountain Hut

An Elenydd Wilderness Hostel. A simple and friendly hostel, hidden away in it's own secluded valley. Hot showers, loads of bunk beds and self catering kitchen. A really lovely place to stay.

Tip by

49.3 km

Cwm Du

Ruins

6

56.2 km

Carreg Clochdy Viewpoint Over Llyn Brianne

Highlight • Viewpoint

Stop for a photo or a picnic, an amazing view over Llyn Brianne you'll wonder if you left Wales and cycled to Norway

Tip by

7

60.0 km

View of Llyn Brianne

Highlight • Lake

Llyn Brianne is a beautiful place for a bike ride. Enjoy the views.

Tip by

8

62.3 km

Llyn Brianne Dam

Highlight • Viewpoint

Stunning spot and worth the extra few hundred metres detour if the plan is otherwise to simply ride around the reservoir.

You'll find brilliant gravel and forestry roads on one …

Tip by

B

63.7 km

End point

Parking

Way Types & Surfaces

Way Types

35.6 km

24.1 km

2.88 km

1.16 km

Surfaces

38.6 km

21.8 km

2.20 km

1.16 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 (520 m)

Lowest point (130 m)

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Weather

Powered by Foreca

Saturday 10 October

14°C

6°C

14 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

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