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

Llanfair Pwllgwyngyll

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

Moderate

riders

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

03:17

65.1km

470m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: August 18, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 22.6 km for 296 m

After 23.4 km for 171 m

After 23.7 km for 1.84 km

Waypoints

Start point

Train Station

Get Directions

13.5 km

Pont Marquis

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 …

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17.8 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.

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21.0 km

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 …

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21.9 km

The Dingle (Nant y Pandy) Nature Reserve

Nature Reserve

23.7 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.

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40.1 km

View Across Central Anglesey

Highlight • Viewpoint

Anglesey is an island in Wales, off the mainland's northwest coast. It's known for its beaches and ancient sites. The island is accessed by the 19th-century Menai Suspension Bridge and …

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52.4 km

Cors Bodeilio National Nature Reserve

Nature Reserve

55.4 km