Nature Reserve Guide
South Wales is home to more than 20 nature reserves, safeguarding a diverse array of protected landscapes. These areas span from the dramatic limestone cliffs and expansive sand dune systems of the Gower Peninsula and Glamorgan coast to the ancient woodlands of the Wye Valley and the vast wetlands of the Severn Estuary. The region's varied terrain provides a network of trails suitable for outdoor activities including hiking, jogging, mountain biking, and gravel biking. This collection represents some of the…
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Last updated: April 23, 2026

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Crymlyn Bog And Pant Y Sais National Nature Reserve is South Wales' largest lowland fen, offering accessible routes for hiking, cycling, and jogging through its unique wetland landscape.
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Lady Park Wood National Nature Reserve is an ecologically important old-growth woodland in the Wye Valley, offering diverse routes for hiking, cycling, and more.
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Fiddler'S Elbow National Nature Reserve offers 45 hectares of ancient woodlands and riverside trails along the River Wye, ideal for hiking and cycling.
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Newport Wetlands National Nature Reserve offers over 438 hectares of diverse coastal habitats and flat paths ideal for cycling, hiking, and jogging with Severn Estuary views.
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Merthyr Mawr Warren National Nature Reserve features one of Europe's largest sand dune systems, offering diverse terrain for hiking, cycling, and jogging routes.
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Whiteford National Nature Reserve offers diverse terrain for hiking, jogging, and cycling, from sandy beaches and dunes to wetlands and pine plantations.
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Gower Coast National Nature Reserve offers diverse terrain, from dramatic cliffs and sandy beaches to hills and woodlands, perfect for hiking, cycling, and jogging.
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Coed Rheidol National Nature Reserve offers diverse routes for hiking, mountain biking, and road cycling through ancient woodlands and a dramatic river gorge.
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Kenfig Pool And Dunes National Nature Reserve offers diverse terrain for hiking, cycling, and mountain biking across its dynamic sand dunes, expansive pool, and woodlands.
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Oxwich National Nature Reserve offers diverse landscapes, from sandy beaches and dunes to woodlands and cliffs, perfect for hiking, cycling, and more.
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Dyfi National Nature Reserve offers diverse landscapes, from sand dunes and mudflats to ancient bogs, ideal for hiking, road cycling, touring cycling, and gravel biking.
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Aberbargoed Grasslands National Nature Reserve offers 105 acres of flower-rich grasslands and woodlands with diverse routes for cycling, jogging, and walking.
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Corsydd Llangloffan National Nature Reserve is a significant wetland in Pembrokeshire, offering diverse terrain for hiking, mountain biking, and road cycling.
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Carmel National Nature Reserve in South Wales offers varied terrain, from gentle paths to rocky tracks, for hiking, cycling, and jogging through unique karst landscapes and diverse habitats.
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Cors Caron National Nature Reserve offers a unique wetland environment in Wales, with flat terrain and established trails perfect for hiking and various cycling sports.
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Coedmor National Nature Reserve features ancient oak woodland and gorge slopes along the River Teifi, offering diverse trails for hiking, jogging, and cycling.
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Waun Las National Nature Reserve in Carmarthenshire, Wales, offers diverse landscapes for hiking, featuring woodlands, meadows, and restored lakes. It is known for its rich biodiversity.
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Allt Rhyd Y Groes National Nature Reserve features ancient woodlands, gorges, and heathland, offering routes for hiking, mountain biking, and road cycling.
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Penhow Woodlands National Nature Reserve offers diverse outdoor activities like hiking and cycling through ancient woodlands on limestone hills in southeast Wales.
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Dinefwr Estate National Nature Reserve is Wales' only parkland NNR, offering diverse routes for hiking, cycling, and jogging across 800 acres of hills and woodlands.
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Nature reserves in South Wales are protected areas designated to conserve a variety of landscapes, from coastal cliffs and sand dunes to wetlands and ancient woodlands. This page aggregates more than 20 such reserves, which provide habitats for diverse wildlife and offer opportunities for low-impact outdoor recreation. These reserves include National Nature Reserves and areas managed by conservation trusts.
The primary activities are human-powered, including hiking, cycling, and mountain biking. The reserves feature over 2,000 documented routes for these sports. Specific trails are available for different activities, such as flat, accessible paths in wetland reserves and more challenging terrain in coastal and woodland areas.
Key reserves include the Gower Coast National Nature Reserve, known for its limestone cliffs, and the Merthyr Mawr Warren National Nature Reserve, which contains one of Europe's largest sand dune systems. Other notable sites are the Newport Wetlands National Nature Reserve on the Severn Estuary and the old-growth woodland of Lady Park Wood National Nature Reserve.
This collection features 22 nature reserves in South Wales. The total number in the region is higher; for instance, there are 76 National Nature Reserves across all of Wales, and the Wildlife Trust of South and West Wales alone manages over 110 reserves. This page focuses on a selection with established recreational routes.
There are over 2,000 routes available, with a significant number dedicated to hiking. The terrain varies widely, from flat, accessible paths in wetland reserves like Newport Wetlands to challenging coastal trails with significant elevation changes along the Gower Coast. Many reserves, such as Fiddler'S Elbow National Nature Reserve, offer woodland hikes with riverside views.
Yes, many reserves offer routes suitable for cycling, including road cycling, touring, and mountain biking. For example, Crymlyn Bog And Pant Y Sais National Nature Reserve has routes for touring bicycles and road bikes. Other reserves feature traffic-free cycle tracks and gravel paths through varied landscapes.
The Gower Peninsula's nature reserves feature a mix of landscapes. The Gower Coast National Nature Reserve is characterized by dramatic limestone cliffs and sandy beaches. Nearby, Oxwich National Nature Reserve includes sand dunes, freshwater lakes, woodlands, and saltmarsh.
Newport Wetlands National Nature Reserve covers over 438 hectares of coastal habitat on the Severn Estuary. It offers a network of flat, well-maintained paths ideal for walking, jogging, and cycling. The reserve is a significant site for birdwatching, with hides available for viewing waders and wildfowl.
Yes, several reserves are suitable for families, offering shorter, flatter trails. Newport Wetlands and Parc Slip Nature Reserve, a reclaimed coal mine, have accessible paths. Bryngarw Country Park also provides a mix of easy parkland and woodland trails suitable for all ages.
Merthyr Mawr Warren is notable for its landscape, which includes one of the largest active sand dune systems in Europe. The reserve offers a variety of hiking and running routes across this dynamic terrain. Its unique environment is also of significant botanical importance.
Yes, South Wales has several reserves focused on woodland conservation. Lady Park Wood National Nature Reserve in the Wye Valley is an important old-growth woodland. Other examples include Coed Rheidol, which features a dramatic river gorge, and Fiddler's Elbow, with ancient woods along the River Wye.

