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Bike touring routes & trails

Stone bridge over the River Cefni – Llyn Cefni Reservoir and Dam loop from Llangristiolus

Bike touring routes & trails

Stone bridge over the River Cefni – Llyn Cefni Reservoir and Dam loop from Llangristiolus

Easy

4

riders

Stone bridge over the River Cefni – Llyn Cefni Reservoir and Dam loop from Llangristiolus

01:25

22.9km

130m

Cycling

Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 20, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

SoDdGA Cors Ddyga

Waypoints

A

Start point

Bus stop

Get Directions

1

6.11 km

Stone bridge over the River Cefni

Highlight • River

Pont Marquis Bridge
Spanning the Afon Cefni, carrying the Trefdraeth to Llangaffo road, c. 3km ENE of Malltraeth. The bridge, which is Grade II listed, was built in the early …

Tip by

2

10.4 km

Lon Las Cefni cycle path along the Afon Cefni

Highlight • Cycleway

Komoot suggests that road bikes may not be suitable, you might have to stop and push across the road but it's fine and legal under your wheels.

Tip by

3

12.0 km

Ynys Cefni

Highlight • Lake

4

16.0 km

Llyn Cefni Dam

Highlight • Monument

Llyn Cefni Dam

During World War II, a water scheme was devised for the town of Llangefni in central Anglesey. It involved water from a local source being pumped to …

Tip by

5

16.1 km

Llyn Cefni Reservoir and Dam

Highlight • Structure

Llyn Cefni is a reservoir in central Anglesey. It's managed by Welsh Water. It was completed in 1951 and supplies water to most of Anglesey.

Tip by

6

16.1 km

Cefni Reservoir Dam

Highlight • Structure

Great loop around the reservoir, all kinds of gravel.

Tip by

7

17.3 km

Llyn Cefni

Highlight • Lake

8

17.7 km

Afon Cefni River

Highlight • Other

B

22.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

12.3 km

8.20 km

1.62 km

511 m

102 m

< 100 m

< 100 m

Surfaces

11.8 km

8.51 km

1.62 km

906 m

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Elevation

Elevation

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

Highest point (80 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Thursday 3 September

18°C

13°C

35 %

Additional weather tips

Max wind speed: 27.0 km/h

to get more detailed weather forecasts along your route

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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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