Llyn Brenig – Llyn Brenig Dam loop from Alwen Dam
Llyn Brenig – Llyn Brenig Dam loop from Alwen Dam
29
riders
Llyn Brenig – Llyn Brenig Dam loop from Alwen Dam
02:51
41.7km
650m
Gravel riding
Hard gravel ride. 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: June 24, 2026
Waypoints
Start point
Parking
Get Directions
51 m
Alwen Dam
Highlight • Monument
Tip by
3.25 km
Llyn Brenig
Highlight • Viewpoint
The dam is fairly recent; it was begun in 1973 and finished in 1976. It maintains the flow of water to the River Dee, not to be confused with the river of the same name in Aberdeenshire.
The water supplied by this reservoir feeds into North-East Wales and North-West England, including the Liverpool area.
Tip by
3.33 km
Llyn Brenig Dam
Highlight (Segment) • Structure
Look out for the fingerposts with trail markings to help you navigate onto your preferred route. You may be surprised just how long it takes to cross here, I thought it was further than it looked!
Tip by
4.54 km
View of Llyn Brenig
Highlight • Forest
Perfect cycling conditions for all ages and abilities. Hire from a wide range of bikes or bring your own ride. Enjoy a gentle family ride on an e-bike or an exhilarating mountain bike adventure.
Tip by
7.66 km
Forest Mountain Bike Trails
Highlight • MTB Park
Tip by
25.7 km
Llyn Brenig — East Shore Gravel Track
Highlight (Segment) • Trail
It's a little rough in places so best on a gravel bike, sturdy hybrid or mountain bike rather than a pure road bike.
Enjoy the views as you meander around the little inlets and see what wildlife you can see across the water.
Tip by
35.8 km
Alwen Plantation
Forest
40.8 km
Gravel Path by Llyn Brenig Reservoir
Highlight • Cycleway
41.0 km
View of the Alwen Reservoir from the north shore
Highlight • Lake
You move between open views and between the trees, but both are pretty spectacular, especially at sunset.
Tip by
41.7 km
End point
Parking
Way Types & Surfaces
Way Types
22.5 km
8.39 km
8.22 km
2.06 km
536 m
Surfaces
27.2 km
5.41 km
5.32 km
3.73 km
< 100 m
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Elevation
Highest point (460 m)
Lowest point (280 m)
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Weather
Powered by Foreca
Thursday 25 June
28°C
17°C
0 %
Additional weather tips
Max wind speed: 28.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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