Newborough Warren And Ynys Llanddwyn National Nature Reserve
Newborough Warren And Ynys Llanddwyn National Nature Reserve
4.7
(62)
3,004
riders
163
rides
Road cycling routes around Newborough Warren And Ynys Llanddwyn National Nature Reserve traverse a diverse landscape of coastal dunes, pine forests, and wetlands. The area features a tidal island, Ynys Llanddwyn, and offers views across Caernarfon Bay to Snowdonia. Routes often follow well-paved surfaces alongside rivers like the Cefni and reservoirs, with some segments potentially unpaved. The terrain generally includes gentle gradients with occasional moderate climbs.
Last updated: May 12, 2026
5.0
(2)
175
riders
53.4km
02:13
350m
350m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
92
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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5.0
(2)
38
riders
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
37
riders
49.0km
02:13
320m
320m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
5
riders
40.2km
01:51
270m
270m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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Popular around Newborough Warren And Ynys Llanddwyn National Nature Reserve
The Isle of Anglesey Coastal Path — Golden beaches and towering cliffs
Cycling around Newborough Warren And Ynys Llanddwyn National Nature Reserve
Hiking around Newborough Warren And Ynys Llanddwyn National Nature Reserve
Running Trails around Newborough Warren And Ynys Llanddwyn National Nature Reserve
MTB Trails around Newborough Warren And Ynys Llanddwyn National Nature Reserve
We visited for the Parkrun, which was cancelled whilst a walkway is fixed (some more weeks, I would expect). You can still access the lake along the disused railway line for part of the way - but not a good surface for running. Then there is a path around the lake with views across the lake and stretches through the woods, lovely, if rather muddy in places following wet weather. In total about 9 km around. Hope to do this again in the Spring with the promise of wild daffodils and perhaps a red squirrel.
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Quiet paths easy cycling crosses deserted railway line still present, which there trying to reopen
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Railway bridge over head tarmac its smooth a couple of potholes but nice to be away from main road traffic.
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Bethel is a very small village with only a couple of shops a church called (Capel Bethel Chapel) and only 2 pubs. I found one little premier shop for water.
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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 C19, was named for the Earl of Uxbridge, first Marquis of Anglesey. It gives wonderful scenery over the marsh land and plenty of wildlife.
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Malltraeth Cob Malltraeth is the next village along from Newborough to the north. The two villages are linked by a “cob” – a dike wall – with a footpath/cycle track along its top. The cob was completed in the early 19th Century, under the direction of Thomas Telford and John Rennie. At the same time, the Afon Cefni was straightened (and straitened) creating what looks like a canal, but is still tidal. This created nearly 1,600ha of grazing land on either side of the Cefni. Much of this land is now a nature reserve managed by the RSPB. Also you will see Llyn Parc Mawr Community Woodland where they have picnic areas where you can enjoyed the red squirrels. It is off road but I used my gatorskins and it was fine.
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RAF Valley on Anglesey is home to No 4 Flying Training School, responsible for training the UK's next generation of world-class fighter pilots. Aircrew is also trained at RAF Valley for mountain and maritime operations throughout the world. RAF Valley is also home to the Mountain Rescue Service, the military's only high readiness, all-weather search and rescue, aircraft post-crash management asset.
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There are over 160 road cycling routes available in Newborough Warren and Ynys Llanddwyn National Nature Reserve, catering to various skill levels. These routes explore the diverse landscape of coastal dunes, pine forests, and wetlands.
The terrain generally features mostly well-paved surfaces with gentle gradients, though some segments may be unpaved. You'll encounter coastal stretches, pine forests, and routes alongside rivers like the Cefni and tranquil reservoirs. Occasional moderate climbs are present, offering varied challenges.
Yes, there are numerous easy routes perfect for beginners or families. For example, the Stone bridge over the River Cefni – Llanddwyn Beach loop from Ynys y Clochydd is an easy 23.3 km path featuring coastal scenery and a stone bridge. The area offers over 80 easy routes in total.
Road cycling routes offer views of diverse natural features. You can see the extensive coastal sand dunes, the tranquil Newborough Forest, and the ecologically important wetlands. Notable landmarks include the iconic tidal island of Ynys Llanddwyn, home to the picturesque Tŵr Mawr Lighthouse and the Ruins of St. Dwynwen's Church. Many routes also provide breathtaking panoramic views across Caernarfon Bay to the peaks of Snowdonia.
Yes, many of the road cycling routes in Newborough Warren and Ynys Llanddwyn National Nature Reserve are circular, allowing you to start and end at the same point. Examples include the RAF Mona Airfield loop from Newborough and the Llyn Cefni Reservoir and Dam – Stone bridge over the River Cefni loop from Newborough.
Parking is generally available at key access points around Newborough Warren. Many routes, such as those starting from Newborough village, offer convenient parking options to begin your ride. Specific parking details can often be found on individual route pages.
The area is increasingly accessible by public transport. The construction of new cycling infrastructure, including shared-use paths and traffic-free green corridors, enhances connections. Route 566 of the National Cycle Network passes through Malltraeth, near Newborough Warren, which may offer public transport links to nearby towns.
The region offers enjoyable cycling throughout much of the year. Spring and autumn provide pleasant temperatures and vibrant scenery. Summer is also popular, though coastal areas can be busier. Winter cycling is possible, but be mindful of weather conditions, as coastal winds can be strong.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 60 reviews. Cyclists often praise the diverse landscapes, from coastal views to peaceful forest sections, and the variety of routes suitable for different abilities. The well-maintained paths and stunning natural beauty are frequently highlighted.
Yes, Newborough Warren and Ynys Llanddwyn are rich in biodiversity. The dunes host rare plants, and the area supports a thriving invertebrate population. The mudflats provide overwintering grounds for numerous bird species like heron, wigeon, and teal. Keep an eye out for red squirrels in Newborough Forest and seals along the coast.
While specific cafes and pubs directly on every route may vary, the villages and towns surrounding Newborough Warren, such as Newborough itself and Malltraeth, offer options for refreshments and meals. Planning your route can help identify suitable stops for a break.
While the area is known for its moderate and easy routes, experienced riders can find longer routes that offer more distance and varied terrain. Routes like the RAF Valley – Porth Trecastell Beach loop from Newborough, at 49 km, provide a good challenge with varied landscapes.


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