Best attractions and places to see around Crumlin include historical sites, natural viewpoints, and diverse trails. This area in South Wales features prominent hills like Twmbarlwm and Mynydd Machen, offering extensive views. Visitors can explore ancient hillforts, enjoy scenic canal paths, and engage with various outdoor activities. The landscape is characterized by its rolling hills and valleys, providing a range of experiences for outdoor enthusiasts.
Last updated: May 9, 2026
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Nice ascent from Crosskeys, but watch out for very overgrown pathways on the Machen side. Great views from the top!
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This area is also great for some technical trail running. Plenty of footpaths meander around the hills.
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Twmbarlwm is a prominent hill and archaeological site located near the town of Cwmcarn in South Wales. It is part of the Caerphilly County Borough and is known for both its natural beauty and historical significance. Here are some key points about Twmbarlwm: Key Features: Hillfort: Twmbarlwm is home to the remains of an ancient hillfort, dating back to the Iron Age. The fortifications, which include earthworks and ramparts, suggest it was a significant settlement during that period. Celtic Connections: The name "Twmbarlwm" is thought to derive from Welsh, with "Twm" being a diminutive of "Tudur" and "barlwm" referring to a mound or hill. The site is associated with Celtic history and mythology. Natural Beauty: The hill offers stunning views of the surrounding landscape, including the nearby valleys and mountains. It is a popular destination for walkers, hikers, and outdoor enthusiasts. Archaeological Significance: Twmbarlwm has been the subject of various archaeological studies, which have revealed insights into ancient settlement patterns, defensive strategies, and daily life in prehistoric Wales. Access: The hill is accessible via footpaths, making it a popular spot for local residents and visitors. There are several trails that lead to the summit, offering a rewarding hike. Cultural Heritage: The site is connected to local folklore and legends, contributing to its cultural significance in the region. Visiting: If you plan to visit Twmbarlwm, it’s a good idea to check local resources or hiking guides for specific trails and information about the area. The site is a great way to experience the natural beauty and historical richness of South Wales.
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Very helpful staff who kindly refilled our water bottles - also pointed out that on entering the main carpark there is a public tap next to the unit/toilets on the left.
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A small summit above Risca. Known locally as the "Twmp" (the hump), the pimple or the nipple, due to the shape of the mound on the summit.
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Friendly staff, reasonable prices, very much recommended.
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Can get pretty busy during the day in the summer, however there's a good selection of snacks, food and drink available.
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You can visit Twmbarlwm Hill and Iron Age hillfort, which offers extensive views and the remains of an ancient hillfort. Another notable historical landmark is the Folly Tower (Pontypool), a man-made monument with a rich history and panoramic views.
Yes, Crumlin offers several excellent viewpoints. From the summit of Twmbarlwm Hill, you can enjoy wonderful views of the Severn Estuary. Similarly, Mynydd Machen Summit provides glorious views over Newport, Cardiff, and the Severn Estuary.
Mountain biking is very popular around Crumlin. The Cwmcarn — Twrch Mountain Bike Trail offers two red-graded singletrack trails and two downhill tracks, featuring technical climbs and long, flowy descents. It's a major hub for mountain biking in South Wales with facilities like a bike shop and cafe.
Absolutely. The Monmouthshire and Brecon Canal Lock provides a family-friendly cycle way and canal path that runs through the Brecon Beacons National Park, offering a tranquil 56 km route suitable for all ages.
There are numerous hiking opportunities around Crumlin. You can explore trails like the Blaen Bran Trail loop, or routes around Blaen Bran Reservoir. For more detailed options, check out the dedicated hiking guide for the area: Hiking around Crumlin.
Gravel biking is a fantastic way to explore the region. You can find routes such as the Pontymoile Basin – Llanelly Quarry Limekilns loop or the Muddy Forest Trail – View of the Rolling Hills loop. Discover more routes in the Gravel biking around Crumlin guide.
Yes, Crumlin offers various running trails. Popular options include the McKenzie's Cafe Bar loop and routes like the Chartist Bridge – Gelligroes Mill loop. For a comprehensive list of running trails, refer to the Running Trails around Crumlin guide.
The Crumlin area is known for its rolling hills and valleys. Prominent natural features include Twmbarlwm Hill and Mynydd Machen, both offering significant elevation and scenic beauty. The region also features picturesque wooded valleys and rivers.
Yes, parking is generally available. For instance, there is plenty of free parking in Machen near the village hall and library for accessing Mynydd Machen Summit. At Cwmcarn Forest, you'll find pay and display car parking facilities at the bottom of the trails.
Visitors frequently highlight the stunning views from elevated points like Twmbarlwm Hill and Mynydd Machen Summit. The well-maintained mountain bike trails at Cwmcarn and the tranquil, family-friendly paths along the Monmouthshire and Brecon Canal are also highly praised.
Yes, at Cwmcarn Forest, a popular mountain biking destination, you'll find a cafe, bike shop, and bike wash facilities, making it convenient for visitors.
While outdoor activities can be enjoyed year-round, spring and autumn often offer the most pleasant weather for hiking, cycling, and mountain biking, with milder temperatures and beautiful scenery. Summer is also popular, though trails can be busier.


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