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Mountain hikes & routes

Llyn y Fan Fach – Narrow Path Below Picws Du loop from Fforest Fawr

Mountain hikes & routes

Llyn y Fan Fach – Narrow Path Below Picws Du loop from Fforest Fawr

Moderate

5.0

(1)

5

hikers

Llyn y Fan Fach – Narrow Path Below Picws Du loop from Fforest Fawr

02:50

8.29km

450m

Mountaineering

Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 20, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

A

Start point

Parking

1

948 m

Old Fish Hatchery

Highlight • Structure

Based on the feeding trough, the nursery appears to be active or recently used.

Translated by Google •

Tip by

2

2.42 km

Llyn y Fan Fach

Highlight • Viewpoint

This route up the western flanks of Llyn Y Fan Fach is one of the best views in the entire Brecon Beacons. To do the Llyn y Fan Fach and …

Tip by

3

3.45 km

View of Llyn y Fan Fach

Highlight • Viewpoint

Moderate trail with high elevation and amazing views, good footwear and fitness required, can get colder at the top on windy day. Enjoy.

Tip by

4

4.65 km

Picws Du summit & view of Llyn y Fan Fach

Highlight • Summit

Picws Du, or Bannau Sir Gaer, is the highest point of the dramatic escarpment high above Llyn y Fan Fach. Due to the remote and untouched landscape, you may have …

Tip by

5

5.44 km

Waterfall in Bannau Brycheiniog National Park

Highlight • Natural Monument

Lovely waterfall at the bottom of a fairly steep descent. Nice place to refill with water if required, but be careful with footing as it can be slippery.

Tip by

6

5.65 km

Narrow Path Below Picws Du

Highlight • Trail

Beware. Narrow path with a big drop. Proceed with caution.

Tip by

7

6.97 km

Afon Sawdde

Highlight • River

8

7.40 km

Old Trout Farm on the Afon Sawdde

Highlight • Structure

The route from here up and around Llyn Y Fan Fawr and Back must be a strong contender as one of the Wales’s most scenic walks. This is just the …

Tip by

B

8.29 km

End point

Parking

Way Types & Surfaces

Way Types

4.17 km

2.11 km

1.97 km

Surfaces

2.19 km

2.18 km

1.97 km

1.90 km

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Elevation

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

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Weather

Powered by Foreca

Friday 9 October

12°C

7°C

-- %

Additional weather tips

Max wind speed: -- km/h

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