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Wales
North Wales

Anglesey

Top 20 Natural Monuments in Anglesey

Best natural monuments in Anglesey are found across this island off the northwest coast of Wales. Anglesey is characterized by its diverse coastline, encompassing low cliffs, secluded coves, and extensive sand dunes. Significant inland areas like Holyhead Mountain and Mynydd Bodafon also contribute to its varied landscape. The island's natural features provide habitats for a range of wildlife and offer opportunities for outdoor activities.

Best natural monuments in Anglesey

  • The most popular natural monuments is Llanddwyn Beach, a natural…

Last updated: May 14, 2026

Holyhead Mountain (Mynydd Tŵr) summit

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At 722 feet (220 m) above sea level, Holyhead Mountain is the highest summit in the county of Anglesey. The Welsh name, Mynydd Tŵr, means ‘tower’ and you are certainly …

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Mynydd Bodafon Summit

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Mynydd Bodafon is a small collection of peaks including the Arwydd which is the highest point on the island of Anglesey. It lies about 2½ miles west of the coastal …

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Llanddwyn Beach

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Llanddwyn is a pristine golden beach backed by wild sand dunes. It boasts spellbinding views of Snowdonia, Caernarfon and the Llyn Peninsula. There's a path from the beach to the nature reserve at Llanddwyn Island.

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On the southwest coast of Anglesey is this hidden gem of a nature reserve. Expect golden beaches, sea views, forest walks, cycle tracks and even a dedicated running circuit. There's …

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Holyhead Breakwater Country Park is often used as a starting point for a hike up Holyhead Mountain or for coastal walks in the area. The park is situated on the …

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Parys Mountain Copper Mines

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❤️COPPER KINGDOM❤️
This place is absolutely insane.... If you haven't been here get Ur self there asap... Plenty of history and 6million tonnes of copper still sits within the mountain …

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Porth Dafarch Beach

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A view of the sand beach at Porth Dafarch on the south coast of Holy Island is enough to make any cyclist take a break to appreciate it.

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Bryn Celli Ddu burial chamber

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Bryn Celli Ddu (‘Mound in the Dark’) is one of Anglesey’s most famous prehistoric landmarks. The great thing is, you can actually walk inside and through this neolithic burial chamber. …

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Red Wharf Bay

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Red Wharf Bay is a vast sandy beach and an Area of Outstanding Natural Beauty. The bay is a nature reserve and is home to lots of birdlife. Keep a …

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View of South Stack Lighthouse

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The lighthouse has warned passing ships of the treacherous rock below since its completion in 1809. The 91-foot (28 m)-tall lighthouse on South Stack was designed by Daniel Alexander and …

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Manny & Daisy
September 1, 2025, Holyhead Mountain (Mynydd Tŵr) Summit

Great day out to hike out of Holyhead.

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Great little country park - definitely worth visiting.

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If you're in the area, be sure to plan at least an hour. Parking is free. It feels like you're on another planet. The trails are very easy, you can visit the ruins of the windmill, and it's simply wonderful. Highly recommended, even with a dog.

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Great place for ice cream burgers and a drink also toilets there and a lovely view of the cove

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Jonny H
April 14, 2025, Llanddwyn Beach

Almost endless beach, check tide time to visit Llanddwyn Island as cut off at high tide

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On the longest day of the year, sunlight flows into the passageway of this Neolithic burial grounds. Bryn Celli Ddu Burial Chamber is one of Anglesey’s most famous prehistoric landmarks, Bryn Celli Ddu (the ‘Mound in the Dark Grove’ in English) is actually two sites in one. In the early Neolithic (New Stone Age) period, a henge (bank and ditch) enclosing a circle of stones was built here, to be replaced later by a chambered tomb beneath a mound measuring up to 85ft/26m in diameter. Inside, a long, narrow passage leads to an octagonal chamber 8 feet/2.4m across, where artefacts such as human bones, arrowheads, and carved stones have been found.

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The lighthouse has warned passing ships of the treacherous rock below since its completion in 1809. The 91-foot (28 m)-tall lighthouse on South Stack was designed by Daniel Alexander and the main light is visible to passing vessels for 24 nmi (44 km; 28 mi), and was designed to allow safe passage for ships on the treacherous Dublin–Holyhead–Liverpool sea route. It provides the first beacon along the northern coast of Anglesey for east-bound ships. It is followed by lighthouses, fog horns, and other markers at North Stack, Holyhead Breakwater, The Skerries, the Mice, Point Lynas, and at the south-east tip of the island Trwyn Du. The lighthouse is operated remotely by Trinity House. You can only go so far with your bike due to the 400 steps you must take to reach the lighthouse itself. We managed to lock our bikes up and tackle the stairs. But on the way back we realised it was too much and legs were tired 😫

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The sharp drop down on the coast road from the north can be taken at speed to swoop into the dip behind the beach and up again over the short climb out.

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Frequently Asked Questions

What diverse natural features can I expect to see in Anglesey?

Anglesey is renowned for its varied natural landscape. You'll find dramatic coastlines with low cliffs, secluded coves, and extensive sand dunes, particularly around areas like Llanddwyn Beach and the Newborough National Nature Reserve and Forest. Inland, there are significant areas like Holyhead Mountain and unique wetland habitats such as the Anglesey Fens, which are important for specialized plant and bird species.

Beyond the most popular, what other natural monuments should I visit in Anglesey?

While Llanddwyn Beach and Holyhead Mountain are well-known, consider exploring Parys Mountain Copper Mines for its unique, almost alien landscape shaped by centuries of mining, or the tranquil The Dingle Local Nature Reserve, a beautiful wooded valley with a river.

When is the best time to visit Anglesey's natural monuments?

The best time to visit Anglesey's natural monuments largely depends on your interests. For seabird nesting, May to July is ideal, especially at South Stack. Spring and autumn offer pleasant temperatures for walking and fewer crowds. Winter can be dramatic and beautiful for coastal walks, though weather can be unpredictable. The island's natural beauty can be appreciated year-round.

Are there family-friendly natural monuments in Anglesey?

Yes, many natural monuments in Anglesey are great for families. Newborough National Nature Reserve and Forest offers golden beaches, forest walks, and cycle tracks. Holyhead Breakwater Country Park is another excellent choice, providing easy trails, facilities, and a starting point for exploring. Porth Dafarch Beach is also a popular family spot.

Can I bring my dog to Anglesey's natural monuments?

Many natural monuments and trails in Anglesey are dog-friendly, especially the coastal path sections and forest areas like Newborough National Nature Reserve and Forest. However, always check local signage, especially in nature reserves or during bird nesting seasons, as some areas may require dogs to be on leads or have restricted access to protect wildlife. Always clean up after your dog.

What kind of walking and hiking trails can I find among Anglesey's natural monuments?

Anglesey offers a wide range of walking and hiking trails. The 201-kilometer (125-mile) coastal path winds through much of the Anglesey National Landscape, providing breathtaking views and varying terrain from easy strolls to challenging hikes. You can find trails around Holyhead Mountain for extensive views, or explore the forest and beach paths at Newborough National Nature Reserve and Forest.

What outdoor activities can I enjoy around Anglesey's natural monuments?

Beyond walking and hiking, Anglesey's natural monuments offer opportunities for various outdoor activities. You can enjoy cycling, with routes like the 'Corsica loop at Coed Niwbrch / Newborough Forest' or the 'Copper Trail' available. Gravel biking is also popular, with trails in Newborough Forest. Birdwatching is exceptional, particularly at sites like Red Wharf Bay and Cemlyn Bay, known for their diverse waterfowl and tern colonies. For more cycling options, explore the Cycling in Anglesey guide.

Are there any historical or cultural sites integrated with Anglesey's natural monuments?

Yes, Anglesey's natural beauty often intertwines with its rich history. The Parys Mountain Copper Mines are a significant historical site, showcasing centuries of mining activity within a striking natural landscape. Additionally, Bryn Celli Ddu burial chamber is an ancient monument nestled within the natural environment, offering a glimpse into prehistoric Anglesey.

Where can I find vast open coastal landscapes and excellent birdwatching opportunities?

For vast open coastal landscapes and exceptional birdwatching, Red Wharf Bay is an excellent choice. At low tide, it reveals a huge expanse of sand, salt marshes, and dunes, serving as a crucial feeding ground for numerous waterfowl and wading birds. Cemlyn Bay is also renowned as a bird sanctuary, especially for its tern colony.

What wildlife can I expect to see around Anglesey's natural monuments?

Anglesey's diverse habitats support a rich array of wildlife. At South Stack, you can witness thousands of nesting seabirds like guillemots, razorbills, and puffins, along with rare choughs and peregrine falcons. Newborough National Nature Reserve and Forest is a stronghold for red squirrels and home to various birds, toads, lizards, and insects. The Anglesey Fens are important for specialized plant species and birdlife, while harbour porpoises can sometimes be spotted off the coast.

Are there any natural monuments in Anglesey that offer panoramic viewpoints?

Absolutely. Holyhead Mountain (Mynydd Tŵr) summit is the highest point in Anglesey, offering extensive views that can reach as far as Ireland on clear days. Mynydd Bodafon Summit also provides excellent panoramic vistas across the island's landscape.

What is the Anglesey National Landscape?

The Anglesey National Landscape (formerly an Area of Outstanding Natural Beauty or AONB) protects approximately one-third of the island. It encompasses a diverse range of landscapes, including low cliffs, secluded coves, beaches, sand dunes, and significant inland areas. It's recognized for its distinctive and attractive scenery and rich array of habitats and wildlife, offering numerous opportunities for outdoor activities.

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Didn’t find what you were looking for?

Find even more amazing natural monuments in Anglesey by checking out the top Highlights region by region:

LlaneugradLlanddonaBodfforddCylch-Y-GarnBeaumarisLlanfachraethCwm CadnantLlangristiolusLlanidanLlanddyfnanLlangoedBodedernBodorganBryngwranLlanddaniel FabLlanfair PwllgwyngyllLlangefniLlannerch-Y-MeddRhoscolynHolyheadTref AlawTrearddurAberffrawPentraethMenai BridgeMoelfreLlanfaelogValleyPenmynyddRhosybolAnglesey Aonb (Ahne Ynys Môn)LlaneilianLlanfair-Yn-NeubwllLlanfair-Mathafarn-EithafRhosyrLlanfaethluLlanfihangel Ysgeifiog

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