Corn Du summit – Pen y Fan loop from Beacons Reservoir

Routes

Mountain hikes & routes

Corn Du summit – Pen y Fan loop from Beacons Reservoir

Hard

hikers

Corn Du summit – Pen y Fan loop from Beacons Reservoir

06:22

18.8km

920m

Mountaineering

Hard mountaineering route. Very good fitness required. Easily walkable paths. The starting point of the route is accessible with public transport.

Last updated: October 8, 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

3.16 km

View of Pen y Fan, Corn Du, and Cribyn

Highlight • Viewpoint

Pen-Y-Fan is the highest peak in the whole of south Wales, and is situated in the Brecon Beacons National Park. Standing Tall At 886 metres (2,907 ft) Above sea-level, it's …

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3.54 km

Corn Du summit

Highlight • Summit

Corn Du is rarely climbed alone, but as a peak added to an expedition to Pen y Fan. The climb up is a great one though and the views from …

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3.57 km

Col between Corn Du and Pen y Fan

Highlight (Segment) • Mountain Pass

This easy col between Pen Y Fan and Corn Du is a gorgeous easy hill section no more than a few hundred metres long with minimal height gain and loss. …

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9.36 km

Gap Road

Highlight (Segment) • Viewpoint

Gap Road. This was the first track to enable horse-drawn carriages to cross the mountain range. It's thought to be a Roman road, although no archaeological evidence has been found …

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14.6 km

Cefn Cwm Llwch

Highlight • Trail

This is the ridge route to Pen y Fan from the north. A fine route that steepens sharply near the top.

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14.6 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 …

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