Abergwesyn Valley – View of Llyn Brianne Reservoir loop from Garth

Bike touring routes & trails

Abergwesyn Valley – View of Llyn Brianne Reservoir loop from Garth

Hard

riders

Abergwesyn Valley – View of Llyn Brianne Reservoir loop from Garth

06:36

95.6km

1,320m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 16, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Nant Irfon National Nature Reserve

Bannau Brycheiniog National Park

Waypoints

Start point

Train Station

Get Directions

13.8 km

Abergwesyn Valley

Highlight (Segment) • Gorge

One of the most beautiful stretches of road in Wales or maybe the world, this valley from Abergwesyn to the well-known and much feared Devil's Staircase is an incredible place …

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17.8 km

Devil's Staircase Gravel Climb

Highlight (Segment) • Cycleway

An alternative climb up the infamous Devil's Staircase, but up the gravel fire road.

Gradients are more gentle than the road climb and the surface is good enough for slick tyres in good, dry conditions, so no gravel bike required!

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23.3 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.

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24.2 km

Cwm Du

Ruins

33.5 km

View of Llyn Brianne Reservoir

Highlight (Segment) • Lake

Llyn Brianne is a beautiful place for a bike ride. You can stop here or carry around to the view point on the opposite side

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39.6 km

Dinas

Forest

70.7 km

A4067 Dual Carriageway to Sennybridge Military Training Area

Highlight • Trail

Lovely steep dual carriageway with minimum traffic from the valley up to the sennybridge military training area. Only on Welsh mountain roads would you find this

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