Nannerth Loop Mountain Bike Trail - Elan Valley - Welsh Water

Mountain Bike Trail

Nannerth Loop

Elan Valley

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Nannerth Loop Mountain Bike Trail


A 29km route that leads you through parts of the Wye valley in addition to the Elan valley. Starts in Rhayader.

Route Details

From Cwmdauddwr on the outskirts of Rhayader, you’ll follow the Wye until you reach Nannerth-fawr. From here, turn left for a long and sustained climb and a traverse under Moelfryn. Leaving the open moorland, follow a short section of the mountain road and then down a single-track that leads all the way down to Craig Goch Dam. Head down the valley, following the cycle path before sharply turning left above Penygarreg Dam. Ascend Esgair Penygarreg and you are rewarded with breathtaking views of the Wye Valley and Black Mountains. Descend and cross the mountain road once again to finish with the exhilarating golf-links descent into Rhayader.

Difficulty: Red

Distance: 29 km / 18m

Time: 3 hrs

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Upcoming Events

19-21
Aug
Pop-Up Planetarium

The Elan Valley Dark Sky Team brings the stars to the Elan Valley Visitor Centre with their pop-up planetarium.

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1-25
Apr   Aug
Dam Open Days

Don’t miss an exclusive chance to venture into Pen y Garreg Dam…

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11-25
Aug
Archery Sessions

This is the perfect activity for the family that seeks adventure with their holidays.

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13-27
Aug
High Ropes Sessions

Platforms, bridges, unusual obstacles, a zip line and an adrenaline jump…

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4-12
Aug   Sep
Guided Kayaking Sessions

An opportunity to enjoy the beauty and tranquillity of the area from the water…

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12-13
Sep
Elan Fest 2026

An unforgettable two days of music, nature and local culture.

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1-31
Jan   Dec
Dragon Quest Trail

Elan Valley’s new Dragon Quest Trail for youngsters is roaringly good fun!

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