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Pen y Fan – Fan y Big loop from Beacons Reservoir

Routes

Running trails & routes

Pen y Fan – Fan y Big loop from Beacons Reservoir

Hard

4.7

(3)

126

runners

Pen y Fan – Fan y Big loop from Beacons Reservoir

05:19

40.9km

1,460m

Running

Hard run. 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: April 29, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Parking

Get Directions

2.28 km

View of Bannau Brycheiniog from the Summit Cairn

Highlight • Summit

this is a good spot for a breather and to take in the incredible views

Tip by

3.15 km

Pen y Fan

Highlight • Summit

Chief of the Brecon Beacons and the highest summit in south Wales, Pen y Fan is a hugely popular peak with routes to the top to suit everyone from first …

Tip by

4.54 km

Cribyn Summit

Highlight • Natural Monument

At 2,608 feet (795 m), the summit of Cribyn boasts awe-inspiring views over Pen-y-Fan, looking towards the steep cliff that forms its eastern flank. When the weather is clear, views …

Tip by

6.36 km

Fan y Big

Highlight • Natural Monument

Fan y Big might have had its mountain status revoked in 2018 — but don't let that put you off. This is a superb peak that forms part of a …

Tip by

7.61 km

Craig Cwareli

Highlight • Summit

Fan y big has got to be one of our favourite walks we go once a year.The views from the spring board are wonderful .Fan y big elevation is 719mt …

Tip by

19.5 km

Talybont-on-Usk Village and Canal

Highlight • River

Talybont is perfectly situated for trail running adventures. This charming village has everything you need for a base, including a trio of excellent pubs, a lovely cafe, a village shop …

Tip by

24.3 km

Talybont Reservoir

Highlight • Viewpoint

Talybont Reservoir is a beautifully tranquil and scenic venue for a trail run. The largest stillwater reservoir in the Brecon Beacons National Park, it's a haven for wildlife, with pochards, …

Tip by

31.3 km

Taf Fechan Forest

Highlight • Trail

Taf Fechan Forest's extensive reach covers the valley floor to the south of the Central Beacons massif in the Bannau Brycheiniog (Brecon Beacons) National Park. It is named after the …

Tip by

40.9 km

End point

Parking

Way Types & Surfaces

Way Types

20.0 km

7.94 km

5.21 km

3.07 km

2.56 km

1.34 km

788 m

Surfaces

12.8 km

10.5 km

9.33 km

4.45 km

1.36 km

1.34 km

1.20 km

Elevation

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

Highest point (860 m)

Lowest point (120 m)

Weather

Thursday 9 July

31°C

13°C

0 %

Additional weather tips

Max wind speed: 6.0 km/h

to get more detailed weather forecasts along your route

Comments

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Pen y Fan – Fan y Big loop from Beacons Reservoir

View of Bannau Brycheiniog from the Summit Cairn

Pen y Fan

Cribyn Summit

Fan y Big

Craig Cwareli

Talybont-on-Usk Village and Canal

Talybont Reservoir

Taf Fechan Forest

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