Routes

Planner

Features

Updates

App

Get the App

Routes

Running trails & routes

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

Routes

Running trails & routes

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

Moderate

runners

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

00:58

9.05km

50m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 27, 2026

Waypoints

Start point

Bus stop

Get Directions

636 m

The Dingle Local Nature Reserve

Highlight • Gorge

The Dingle Local Nature Reserve is a 10 hectare (25 acre) wooded valley rich in wildlife and history. It is bisected by the river Cefni, which comes from the Welsh word "cafn" meaning trough or hollow.

Tip by

2.83 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

4.47 km

Afon Cefni River

Highlight • Other

4.47 km

River Entering Llyn Llangefni

Highlight • Lake

4.94 km

Llyn Cefni

Highlight • Lake

6.19 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

6.96 km

Red Squirrel Viewing Spot

Highlight • Natural Monument

8.74 km

Llangefni Clock Tower

Highlight • Structure

Llangefni (meaning "church on the River Cefni", Welsh pronunciation: [ɬaŋˈɡɛvni]) population 5,116, making it the second-largest town in the county and the largest on the island. The community includes the …

Tip by

9.05 km

End point

Bus stop

Way Types & Surfaces

Way Types

7.74 km

1.01 km

215 m

< 100 m

Surfaces

3.17 km

2.90 km

1.68 km

1.25 km

< 100 m

Elevation

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

Weather

Monday 10 August

25°C

11°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

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

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Hard

5.0

459

Pyg and Miners Track loop on Yr Wyddfa (Snowdon) from Pen-y-Pass — Trail Running in Eryri (Snowdonia)

02:11h

12.2km

680m

Moderate

4.6

505

Llyn Padarn Loop Trail

01:01h

8.54km

120m

Hard

4.8

463

Snowdon Summit loop, Telegraph Valley & the Llanberis Path — Snowdonia National Park

02:55h

18.9km

1,100m

Hard

4.0

266

Moel Eilio loop from Llanberis

01:47h

13.5km

650m

Hard

4.0

178

Carnedd Dafydd & Carnedd Llewelyn loop from the Ogwen Valley

02:50h

19.7km

930m

Hard

5.0

126

Yr Wyddfa (Snowdon) Horseshoe loop from Pen-y-Pass — Trail Running in Eryri (Snowdonia)

02:50h

12.2km

830m

Hard

5.0

121

Rhyd-Ddu and Snowdon Ranger Path loop on Yr Wyddfa (Snowdon) — Trail Running in Eryri (Snowdonia)

02:29h

15.4km

900m

Hard

5.0

110

South Ridge and Watkin Path loop on Yr Wyddfa (Snowdon) — Trail Running in Eryri (Snowdonia)

02:27h

14.0km

980m

Hard

5.0

114

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

02:16h

14.8km

910m

Hard

5.0

Moel Eilio and Yr Wyddfa (Snowdon) loop from Llanberis — Trail Running in Eryri (Snowdonia)

03:27h

22.1km

1,360m

Hard

5.0

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

02:19h

11.5km

930m

Hard

Newborough Forest & Llanddwyn Island loop from Llyn Rhos Ddu — Anglesey

01:54h

16.0km

90m

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

The Dingle Local Nature Reserve

Llyn Cefni Reservoir and Dam

Afon Cefni River

River Entering Llyn Llangefni

Llyn Cefni

Llyn Cefni Dam

Red Squirrel Viewing Spot

Llangefni Clock Tower

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️