Routes Planner Features Updates

Login or Signup

Login or Signup

Login or Signup

Hiking trails & Routes

Llyn Cefni Reservoir and Dam – Afon Cefni River loop from Anglesey

Hiking trails & Routes

Llyn Cefni Reservoir and Dam – Afon Cefni River loop from Anglesey

Easy

4.7

(20)

216

hikers

Llyn Cefni Reservoir and Dam – Afon Cefni River loop from Anglesey

01:34

6.04km

30m

Hiking

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 21, 2026

Waypoints

A

Start point

Parking

1

1.30 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

2

1.37 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

3

1.42 km

Cefni Reservoir Dam

Highlight • Structure

Great loop around the reservoir, all kinds of gravel.

Tip by

4

2.54 km

Llyn Cefni

Highlight • Lake

5

3.00 km

Afon Cefni River

Highlight • Other

6

3.01 km

River Entering Llyn Llangefni

Highlight • Lake

7

5.75 km

Cefni Forest

Highlight • Forest

Cefni Forest on Anglesey surrounds Llyn Cefni reservoir near Llangefni. It offers peaceful woodland trails for walking and cycling, linking to the Lon Las Cefni route. The forest is a …

Tip by

B

6.04 km

End point

Parking

Way Types & Surfaces

Way Types

3.35 km

2.20 km

480 m

Surfaces

4.02 km

1.41 km

292 m

256 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

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

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Tuesday 6 October

13°C

9°C

47 %

Additional weather tips

Max wind speed: 25.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Navigate Send to Phone

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

4.8

9,801

Snowdon via Pyg and Miners' Track Loop

04:56h

12.3km

680m

4.8

1,114

Llyn Idwal loop from Ogwen Cottage — Eryri / Snowdonia National Park

01:32h

4.77km

200m

4.8

983

Snowdon Horseshoe

05:51h

12.4km

870m

4.7

1,097

Y Garn to Glyder Fach loop — Parc Cenedlaethol Eryri | Snowdonia National Park

04:21h

9.04km

850m

4.8

1,593

Llyn Idwal loop from Ogwen Cottage — Eryri (Snowdonia) National Park

01:11h

4.18km

100m

4.8

676

Cwm Idwal & Y Garn loop from Ogwen Cottage — Eryri / Snowdonia National Park

03:07h

7.35km

610m

4.7

1,156

Rhyd Ddu and Snowdon Ranger Paths Loop

06:27h

17.8km

1,060m

4.3

956

Around Llyn Padarn from Llanberis

02:23h

8.57km

150m

4.7

696

Glyder Fach & Glyder Fawr loop via Bristly Ridge from Ogwen Cottage — Snowdonia National Park

04:13h

8.84km

730m

4.8

7,469

Llanberis Path – Snowdon Summit (Yr Wyddfa) loop from Llanberis

05:17h

14.0km

930m

4.8

516

Carnedd Dafydd & Carnedd Llewelyn loop from the Ogwen Valley — Snowdonia National Park

06:45h

18.8km

1,040m

4.7

469

Tryfan North Ridge Loop

02:47h

4.61km

530m