Chiltern Hills Area of Outstanding Natural Beauty Adventures
The Chiltern Hills Area of Outstanding Natural Beauty (AONB) is a scenic region in south-east England known for its rolling chalk hills, rich biodiversity, and extensive network of outdoor trails appealing to hikers, cyclists, and nature enthusiasts.
About Chiltern Hills Area of Outstanding Natural Beauty
The Chiltern Hills AONB covers approximately 833 square kilometers across parts of Buckinghamshire, Hertfordshire, Bedfordshire, and Oxfordshire. It features distinctive chalk escarpments, beech woodlands, and chalk grasslands that support a wide variety of plant and animal species, including several rare and protected species. The landscape offers gently undulating hills punctuated by chalk streams, historic market towns, and picturesque villages, creating a diverse outdoor environment. Its geological formation dates back to the Cretaceous period, and the hills have been historically significant since prehistoric times, with ancient barrows, medieval churches, and remnants of Roman roads scattered throughout. Visitors enjoy activities such as hiking on the iconic Ridgeway National Trail, birdwatching, mountain biking, and horse riding. Scenic landmarks like Coombe Hill, which offers panoramic views of the Thames Valley and Aylesbury Vale, are popular destinations. The area also hosts distinctive chalk carvings, including the Aston Rowant White Horse. The Chilterns provide a tranquil countryside experience within easy reach of London, attracting both local day-trippers and longer-stay visitors. Numerous community initiatives and conservation efforts support the preservation of the natural and cultural heritage of the region.
Highlights
The Ridgeway National Trail — one of Britain's oldest long-distance paths crossing the Chiltern Hills.
Coombe Hill viewpoint — offering sweeping panoramic views across the Thames Valley.
Aston Rowant National Nature Reserve — renowned for chalk grassland habitats and rare butterflies.
Chalk White Horse at Aston Rowant — an iconic hillside chalk carving dating from the mid-20th century.
Notable Natural Features
The Ridgeway
A 87-mile historic path running along the Chiltern escarpment, often called Britain's oldest road, offering varied scenery and access to multiple ancient sites.
Aston Rowant National Nature Reserve
A chalk grassland habitat supporting rare butterfly species such as the Chalkhill Blue and important flora, managed for conservation and public education.
Coombe Hill
A prominent hill featuring a war memorial and commanding panoramic views over the surrounding countryside, making it a key destination for visitors.