Newborough Warren And Ynys Llanddwyn National Nature Reserve
Newborough Warren And Ynys Llanddwyn National Nature Reserve
4.2
(15)
2,386
runners
13
runs
Jogging around Newborough Warren And Ynys Llanddwyn National Nature Reserve offers a diverse landscape for runners. The region features extensive coastal sand dunes, some of the largest in Wales, alongside vast pine forests primarily composed of Corsican pines. Routes traverse sandy beaches, rocky shores, and the unique tidal island of Ynys Llanddwyn. From various points, views extend across Caernarfon Bay to the peaks of Snowdonia, providing a varied backdrop for running.
Last updated: May 19, 2026
43
runners
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
43
runners
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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35
runners
16.2km
01:52
80m
80m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
18
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
15
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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
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One of my favourite places to sit and look out to Snowden.
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Stunning beach with sand dunes and beautiful views across to the jagged peaks of Eryri (Snowdonia).
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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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Nice cycle path along the embankment gives a great view of Malltraeth Sands as a more pleasant alternative to the A4080.
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The path to the island is subject to the tides and can only be reached on foot when the tide is falling. Enough time must be allowed between tides to avoid getting stranded on the island
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This car park off (High Street) is free..... So often fills up fast get there early to get a spec
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There are 13 dedicated jogging routes available in the Newborough Warren and Ynys Llanddwyn National Nature Reserve area. These routes offer a mix of moderate and difficult options, catering to various fitness levels.
Runners can expect a highly diverse landscape. The routes traverse expansive coastal sand dunes, extensive pine forests (primarily Corsican pines), sandy beaches, and rocky shores. You'll also find paths around lakes like Llyn Rhos Ddu and along the Afon Cefni river, providing a constantly changing and stimulating environment.
Yes, the reserve offers a variety of routes for different abilities. While there are 8 moderate and 5 difficult routes, the diverse terrain allows runners to choose paths that suit their experience, from sheltered forest trails to more challenging coastal loops and sandy stretches.
Many routes offer stunning views and pass by significant landmarks. You can run past the iconic Tŵr Mawr Lighthouse, explore the ruins of St. Dwynwen's Church on Ynys Llanddwyn, or enjoy the vastness of Llanddwyn Beach. Don't miss the breathtaking views of Snowdonia from Ynys Llanddwyn Beach.
Newborough Warren and Ynys Llanddwyn National Nature Reserve is generally dog-friendly, but it's crucial to keep dogs under close control, especially due to the presence of wildlife and livestock. Specific restrictions may apply in certain areas, particularly during nesting seasons or near sensitive habitats. Always check local signage for the most current guidelines.
Yes, many of the routes are designed as loops, offering a varied experience without retracing your steps. For example, the Newborough Forest & Llanddwyn Island loop from Llyn Rhos Ddu — Anglesey is a popular circular option that combines forest and coastal paths.
The reserve offers a unique experience year-round. Spring and autumn provide pleasant temperatures and vibrant scenery, while summer is ideal for coastal runs and beach access. Winter can be invigorating, with crisp air and dramatic views, though some paths might be muddier. Always check tide times if planning to access Ynys Llanddwyn Island.
The reserve is a haven for wildlife. You might spot red squirrels within the pine forests. Along the coast and on Ynys Llanddwyn, look out for nesting seabirds like cormorants, shags, and oystercatchers, as well as various waders. The diverse habitats support a rich array of flora and fauna.
Ynys Llanddwyn is a tidal island, meaning it's accessible on foot at all but the highest tides. It's essential to check local tide tables before planning your run to the island to ensure safe passage and avoid being cut off. The island offers unique historical sites and stunning coastal views.
Yes, the reserve is well-known for its running facilities. There's a dedicated 5km running trail, often associated with the popular Parkrun event, and a Commonwealth Running Trail that follows part of a championship race route. These established paths provide excellent options for both casual and more serious runners.
The area is highly rated by the komoot community, with an average score of 4.2 stars from over 15 reviews. Runners frequently praise the unique combination of expansive sand dunes, sheltered pine forests, and the dramatic coastal scenery, especially the views across Caernarfon Bay to Snowdonia. The varied terrain and well-maintained trails are also often highlighted.
There are designated parking areas available for visitors to Newborough Warren and Ynys Llanddwyn National Nature Reserve. These are typically located near the main access points to the forest and beaches. Parking fees may apply, so it's advisable to check local signage upon arrival.
Absolutely. From various points within the reserve, particularly from Ynys Llanddwyn beach and other coastal sections, you can enjoy spellbinding views across Caernarfon Bay to the majestic peaks of Snowdonia. This dramatic mountainous backdrop adds a spectacular element to your coastal runs.


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