Fan Hir – Llyn y Fan Fawr loop from Penwyllt

Running trails & routes

Fan Hir – Llyn y Fan Fawr loop from Penwyllt

Hard

5.0

(1)

runners

Fan Hir – Llyn y Fan Fawr loop from Penwyllt

02:17

15.9km

640m

Running

Hard run. 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: August 5, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Bus stop

Get Directions

1.33 km

View of the Hills in Bannau Brycheiniog National Park

Highlight • Trail

having come across the bridge and through 3 gates head straight up the hill infront of you.

follow the well trodden path that skims close to the ridge.

Tip by

5.52 km

Fan Hir

Highlight • Viewpoint

Fan Hir means long summit in English, which is an apt description for this rather indistinct, long-drawn-out ridge summit that is part of a broader escarpment feature that circumnavigates Llyn …

Tip by

5.55 km

Fan Hir Ridge

Highlight • Trail

The run along the Fan Hir ridgeline traces the scalloped edge of the Carmarthen Fans on a clear, inviting path. The high point of the ridge stands at 2,349 feet …

Tip by

6.56 km

Fan Brycheiniog summit and stone shelter

Highlight • Summit

Poised and elegant, Fan Brycheiniog is the climax of a striking escarpment edge in the Black Mountain range of the western Brecon Beacons. From sculpted valleys to pretty tarns, the …

Tip by

6.62 km

Fan Brycheiniog Summit and Shelter

Highlight • Natural Monument

Fan Brycheiniog, at 2,631 feet (802 m), is the highest point in the Mynydd Du (Black Mountain) area of the Bannau Brycheiniog (Brecon Beacons) National Park.

There's a handy shelter …

Tip by

7.32 km

Fan Foel

Highlight • Natural Monument

Fan Foel, at 2,562 feet (781 m), is a protruding summit on the scalloped edge of the Carmarthen Fans. It's tempting to miss this summit out, following the good path …

Tip by

8.53 km

Gwal y Cadno

Ruins

9.61 km

Llyn y Fan Fawr

Lake

9.91 km

Llyn y Fan Fawr

Highlight • Natural Monument

Llyn y Fan Fawr is a natural lake at the foot of Fan Brycheiniog. There's a lovely route that incorporates both Llyn y Fan Fawr and Llyn y Fan Fach, …

Tip by

12.9 km

Nant Tawe Fechan Waterfalls

Highlight • Natural Monument

A series of waterfalls, some with fairly decent dipping pools all the way down.

Tip by

15.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

12.0 km

1.62 km

1.35 km

473 m

467 m

< 100 m

Surfaces

13.1 km

1.91 km

473 m

467 m

< 100 m

Elevation

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

Weather

Friday 23 October

14°C

4°C

98 %

Additional weather tips

It’s set to rain on your activity. Pack a waterproof jacket.

to get more detailed weather forecasts along your route

Comments

April 4, 2023,#35 Fan Brycheiniog & #48 Fan Hir (Brecon Beacon/Bannau Brycheiniog)

A lovely route that includes 2 of the Welsh 100 mountains list!

Linking up the 2 bridleways the route can easily be extended to include additonal summits and loop continuously along the Beacons Way historic route.

Stunning waterfalls with dipping pools along the route and a truly lively, shallow lake perfect for the wild swim.