Best natural monuments around Llanfair-Mathafarn-Eithaf showcase the diverse natural landscape of Anglesey, Wales. This area features a rugged coastline, significant geological formations, and varied ecosystems. Visitors can explore ancient historical sites, coastal viewpoints, and nature reserves. The region offers a range of natural attractions for those interested in geology, history, and outdoor exploration.
Last updated: May 3, 2026
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Popular around Llanfair-Mathafarn-Eithaf
Cycling on Anglesey — in search of the wild on Wales' largest island
Isle of Anglesey Coastal Path — Epic beauty, wildlife and prehistory
Cycling around Llanfair-Mathafarn-Eithaf
Road Cycling Routes around Llanfair-Mathafarn-Eithaf
Hiking around Llanfair-Mathafarn-Eithaf
Running Trails around Llanfair-Mathafarn-Eithaf
MTB Trails around Llanfair-Mathafarn-Eithaf
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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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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Absolutely amazing place. Imagine flying to Mars and going for a walk - this is what you would imagine to find there! The colours on the rocks and the general feel and scenery is crazy cool.
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Large sandy bay surrounded by dunes. On the north side there are large, striking limestone cliffs of Castell Mawr - certainly geologically interesting, looks like climbers could have fun here... The beach itself is a really large (!) sandy bay, very popular in summer but largely deserted out of season. You can sometimes see kitesurfers and windsurfers here. There is parking behind the dunes and there is a small beach café and shop.
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A small but tough and technical climb, beware of sharp rocks on the left hand side when descending
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The Dingle Local Nature Reserve is a 10 hectare (25 acre) wooded valley rich in wildlife and history. It is bisected by the river Cefni, which comes from the Welsh word "cafn" meaning trough or hollow. The Dingle is a steep sided gorge formed by glacial meltwater during the last ice age hence one of its Welsh names Nant y Dilyw - Valley of the Deluge. Another name for the Dingle is Nant y Pandy - Brook of the Fulling Mill. This refers to the old wool processing plant situated upstream. Much of the reserve is ancient woodland which led to it being known as the Dingle as early as the 1830s. Dingle literally means steep wooded valley.
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Copper has been mined here since the bronze age with recent archaeological digs finding evidence of 4000-year-old mining activity. It's a huge open cast copper mine created entirely by people with spades, pickaxes and dynamite. It's rise in the late 1780's to early 1800's dominated the worlds copper industry, contributing to the demise of the Cornish copper mines. Today it's a scared landscape with only a few plants coping with the copper polluted soil and very few animals. It does create an amazing landscape though, almost alien. Interestingly there is still about 6.5 million tonnes of copper underground which may lead to the mining re-starting in the future.
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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 today!! I got very emotional here has my dad was a miner and later become a copper collector so discovering this absolutely blew my mind. SPECIAL PLACE IN MY HEART THIS ONE
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Beyond the well-known spots, consider visiting the Parys Mountain Copper Mines. This historical mining landscape, active for thousands of years, offers a distinct, almost alien environment with unique colors and views, making it a fascinating natural monument shaped by human activity.
Yes, several natural monuments are family-friendly. Red Wharf Bay is a vast sandy beach and nature reserve, perfect for birdwatching and exploring. Another excellent option is Bryn Celli Ddu burial chamber, where families can walk inside a Neolithic tomb and learn about ancient history.
For a rich wildlife experience, head to Cors Goch Nature Reserve. This internationally significant fenland habitat is a biodiversity hotspot, home to rare plants like wild orchids, over 250 species of moth, numerous dragonflies, and various marsh birds. Boardwalks provide access to observe the varied flora and fauna.
The Mynydd Bodafon Summit, the highest point on mainland Anglesey, provides celebrated 360-degree panoramas. On clear days, you can see the entire Eryri (Snowdonia) range, the Carneddau peaks, and the Great Orme. Point Lynas also offers magnificent sea views stretching across the Irish Sea, with potential sightings of Ireland and the Lake District.
Absolutely. The Natural Arches of Rhoscolyn, specifically Bwa Du and Bwa Gwyn, are striking examples of sea-carved geological formations on Holy Island's dramatic coastline. You can also observe intricate folded rock formations in this area. The limestone cliffs at Red Wharf Bay are another notable geological feature.
The area offers various outdoor activities. For hiking, you can explore trails around Red Wharf Bay or the Anglesey Coastal Path near Point Lynas. There are also numerous hiking routes, running trails, and road cycling routes throughout the region, many of which pass by or offer views of these natural sites.
The best time to visit depends on your interest. For general outdoor activities and enjoying the coastal scenery, spring and summer offer pleasant weather. If you're interested in the unique alignment of Bryn Celli Ddu burial chamber, the summer solstice (around June 21st) is when the sunrise illuminates its inner chamber. Wildlife viewing at Cors Goch is also excellent during warmer months.
Yes, Bryn Celli Ddu burial chamber is a prominent Neolithic chambered tomb built upon a former henge monument, offering a deep dive into ancient history. The Parys Mountain Copper Mines also have a history of mining dating back thousands of years, making it a natural monument with significant historical context.
Yes, The Dingle Local Nature Reserve is a 10-hectare wooded valley rich in wildlife and history. It is bisected by the River Cefni, offering a steep-sided gorge formed by glacial meltwater. This ancient woodland provides a lovely setting for forest and river walks.
Visitors frequently praise the dramatic coastal scenery, the sense of ancient history, and the diverse ecosystems. The unique colors and historical depth of Parys Mountain Copper Mines are often highlighted, as is the opportunity to walk inside the Neolithic Bryn Celli Ddu burial chamber. The vastness and birdlife of Red Wharf Bay also receive high acclaim.
Definitely. The Anglesey Coastal Path runs along many of the natural monuments, including the rugged coastline around Point Lynas and the dramatic cliffs near the Natural Arches of Rhoscolyn. These sections offer excellent opportunities for cliff-top walks, enjoying sea views, and spotting marine wildlife like seals and seabirds.
While specific parking details vary by location, most popular natural monuments like Red Wharf Bay and Bryn Celli Ddu typically have designated parking areas nearby. For more remote sites like Cors Goch or Mynydd Bodafon, parking might be more limited or require a short walk from a roadside spot.


Extend your search for the best caves by checking out these guides of the top ones around Llanfair-Mathafarn-Eithaf: