4.6
(45)
1,485
riders
27
rides
Road cycling around Cefni Reservoir offers a network of routes across diverse landscapes in Anglesey. The region features the tranquil waters of the reservoir, expansive marshlands, and connections to broader cycling networks. Many routes incorporate sections of the Lon Las Cefni Cycleway, providing traffic-free options. The terrain includes flat, accessible sections alongside the River Cefni, as well as routes with moderate elevation gains through central Anglesey.
Last updated: July 12, 2026
5.0
(1)
4
riders
81.7km
04:03
700m
700m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
4
riders
55.3km
02:36
470m
470m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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6
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
3
riders
57.6km
02:44
400m
400m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Cefni Reservoir
The most northerly village is Wales. Some good places to stop you will also see the wind farm from the road.
3
0
Cemaes Bay truly is a lovely everyman village with a pretty little harbour and two beaches. Both beaches are perfect for all manner of fun beach activities, Sailing, Windsurfing and Surfing. The Fishing can be excellent along the coast behind St Padrig's Church along the headand on the Llanbadrig Ledges. Then, there is the absolutely staggering Anglesey Coastal Path leading to the east towards Bull Bay, Amlwch and all the way around again. This portion of the Anglesey Coastal Path around Cemaes Bay really does take your breath away. More or less everything that has been weighing heavy on your mind and heart dissolves away to a pleasant state of tranquil reflection.
3
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Mynydd y Garn is a hill in the northwest of Anglesey offers stunning views at the top and below. Its 170 m high summit is crowned by a trig point and a stone obelisk. Erected in 1897 it commemorates Sir William Thomas, ship-owner and one time High Sheriff of Anglesey.
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Holyhead Mountain in the distance is the highest point on Holy Island, Anglesey. It lies about two miles west of the town of Holyhead, and slopes steeply down to the Irish Sea on two sides. Ireland can be seen from the views on a clear day and the cliffs below are an important site for seabirds.
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There are over 25 dedicated no-traffic road cycling routes around Cefni Reservoir, catering to various fitness levels. You'll find a good mix of easy and moderate options to explore the beautiful Anglesey landscape.
Yes, the area is well-suited for families and less confident cyclists. The Afon Cefni River Trail – Stone bridge over the River Cefni loop from Llangefni is an excellent easy option, offering a pleasant ride along the river. The Lon Las Cefni Cycleway, which connects Malltraeth to Cefni Reservoir, is also largely traffic-free and ideal for families.
The routes around Cefni Reservoir offer a diverse range of scenery. You'll cycle through dense woodlands like The Dingle Nature Reserve, vibrant marshlands rich with birdlife, and tranquil reservoir views. Some routes also connect to coastal forests like Newborough Forest, known for its Corsican pines and red squirrel conservation efforts.
Many of the routes are designed as loops, allowing you to start and finish in the same location. For example, the View Across Central Anglesey – Llynnon Mill loop from Anglesey offers a moderate circular ride, taking you past historic sites and scenic viewpoints.
Most routes feature well-paved surfaces suitable for road bikes. The majority of the 28 routes are classified as easy (18 routes) or moderate (10 routes), with no difficult routes. This means you can find options ranging from gentle, flat sections to more undulating terrain with moderate elevation gains, such as the View of Cemaes Bay and Harbour – RAF Valley loop from Anglesey.
The komoot community highly rates the cycling experience around Cefni Reservoir, with an average score of 4.6 out of 5 stars from 37 ratings. Cyclists often praise the peaceful, traffic-free sections, the beautiful and varied landscapes, and the opportunity to spot diverse wildlife, especially birds in the marshlands.
Yes, several routes pass by or near interesting historical sites. You might encounter the old market town of Llangefni, or cycle past the Llynon Mill, an 18th-century working windmill, as featured in the Stesion y Llan Café – Llynnon Mill loop from Llangristiolus. Iron Age roundhouses are also in the wider area, offering a glimpse into ancient history.
The old market town of Llangefni serves as a good hub for accessing routes around Cefni Reservoir and is connected by local bus services. From Llangefni, you can easily reach trailheads or connect to sections of the Lon Las Cefni Cycleway, which runs parallel to the River Cefni.
Parking is generally available in and around towns like Llangefni, which are good starting points for many routes. Specific parking areas may also be found near access points to the Lon Las Cefni Cycleway or other popular trailheads around the reservoir.
Spring and summer generally offer the most pleasant cycling conditions with milder weather and longer daylight hours, allowing you to fully enjoy the vibrant marshlands and woodlands. Autumn can also be beautiful with changing foliage. While winter cycling is possible, be prepared for cooler temperatures and potentially wetter conditions.
Yes, the routes often pass through or near towns like Llangefni, where you can find cafes and shops to refuel. Some routes, like the Stesion y Llan Café – Llynnon Mill loop from Llangristiolus, even highlight specific cafes as part of the tour name, indicating convenient refreshment stops.


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