Llyn Arenig Fawr – Arenig Fawr Bothy loop from Capel Celyn

Routes

Running trails & routes

Llyn Arenig Fawr – Arenig Fawr Bothy loop from Capel Celyn

Hard

runners

Llyn Arenig Fawr – Arenig Fawr Bothy loop from Capel Celyn

01:30

9.93km

530m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Last updated: July 17, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

Start point

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497 m

Moel y Garth

Highlight • Viewpoint

1.89 km

Llyn Arenig Fawr

Highlight • Viewpoint

A beautiful lake in the shadow of Arenig Fawr mountain

Tip by

2.05 km

Arenig Fawr Bothy

Highlight • Mountain Hut

A great little bothy on the edge of Llyn Arenig Fawr, complete with a fireplace. It sleeps 3 people on benches.

Tip by

2.10 km

Nant Aberderfel

Highlight • River

The outflow from Llyn Arenig down to Llyn Celyn, this shows where it flows through the dam.

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3.58 km

View of Llyn Arenig Fawr

Highlight • Viewpoint

4.93 km

Arenig Fawr Summit and Flying Fortress Memorial

Highlight • Viewpoint

Arenig Fawr is one of my favourite mountains in Wales. Grand enough to be impressive and not anywhere close to being as busy as the more famous northern peaks. It …

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9.93 km

End point

Way Types & Surfaces

Way Types

5.96 km

3.97 km

Surfaces

9.93 km

Elevation

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Weather

Saturday 10 October

13°C

6°C

10 %

Additional weather tips

Max wind speed: 13.0 km/h

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Llyn Arenig Fawr – Arenig Fawr Bothy loop from Capel Celyn

Moel y Garth

Llyn Arenig Fawr

Arenig Fawr Bothy

Nant Aberderfel

View of Llyn Arenig Fawr

Arenig Fawr Summit and Flying Fortress Memorial

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