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Road cycling routes

Lake Vyrnwy Dam – Nant y Maes Waterfall loop from Abertridwr

Road cycling routes

Lake Vyrnwy Dam – Nant y Maes Waterfall loop from Abertridwr

Moderate

3

riders

Lake Vyrnwy Dam – Nant y Maes Waterfall loop from Abertridwr

01:25

27.6km

500m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: April 15, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Parking

Get Directions

1

115 m

Lake Vyrnwy Dam

Highlight • Monument

This is brilliant peice of architecture thats still in use today, you can feel the sheer power of the flow of water down the dam one side, and the peace and tranquility of the lake the other.

Tip by

2

373 m

View of Lake Vyrnwy

Highlight (Segment) • Viewpoint

3

3.50 km

Nant y Maes Waterfall

Highlight • River

Along the road you come to a small bridge at the side of it is a beautiful natural waterfall close to Nant y Maes stream.
Stunning waterfall that meets the lake

Tip by

4

7.32 km

Hidden Waterfall

Highlight • Natural

5

7.72 km

Bwlch y Groes Climb from Lake Vyrnwy

Highlight (Segment) • Viewpoint

Climbed it 30 odd years ago........with young fit legs!! Recently descended it in heavy rain with bike packing gear - makes for a bottom clenching descent - exercise caution at the bottom, there's a tight left hand bend, beware!!

Tip by

6

14.0 km

View of the Valley from Bwlch y Groes

Highlight • Mountain Pass

The climb up to Bwlch-y-Groes from Llanymawddwy is a tough one. It is about 3.4 km long and has about 387 m of vertical ascent to get to the gap …

Tip by

7

26.8 km

View of the Straining Tower at Lake Vyrnwy

Highlight • Monument

Some great views along this part of the road, well worth a visit.

Tip by

B

27.6 km

End point

Parking

Way Types & Surfaces

Way Types

27.3 km

221 m

< 100 m

Surfaces

27.6 km

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Elevation

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

Sunday 12 July

24°C

11°C

0 %

Additional weather tips

Max wind speed: 26.0 km/h

to get more detailed weather forecasts along your route

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