Crossing the Border on Foot: A Walk Across the Old Severn Bridge

Written by Lisa Baker

Few walks in the UK offer the same blend of engineering marvel, historic significance, and sweeping estuary views as a stroll across the Old Severn Bridge. Spanning the iconic Severn Estuary between Aust in South Gloucestershire and Chepstow in Monmouthshire, the bridge is not just a transport link—it’s a journey between England and Wales, and between past and present.  It’s also something that’s completely free that can be enjoyed by all ages – what’s not to love?

A Pathway with Purpose

Officially opened in 1966, the Severn Bridge was once a vital artery for the M4 motorway until it was largely superseded by the Second Severn Crossing (now renamed the Prince of Wales Bridge) in 1996. Today, it remains in use as part of the M48 and offers a dedicated pedestrian and cycle path that’s free to access and open year-round.

The pedestrian walkway runs alongside the bridge’s main carriageway but is safely separated by barriers, making it a secure and surprisingly peaceful route—especially outside peak driving hours. Whether you’re a seasoned hiker, a casual stroller, or a cyclist seeking an impressive ride, the Old Severn Bridge provides a unique experience: walking from one country to another, surrounded by sea, sky, and the subtle hum of modern mobility.

The Walk Itself

At approximately 1.6 miles (2.5km) in length, a one-way crossing takes about 30 to 40 minutes on foot at a leisurely pace. Start at the Aust Services car park on the English side, where signage points clearly to the access ramp. From there, the path steadily rises, offering expansive views almost immediately—out across the Severn and Wye estuaries, over tidal mudflats and salt marshes that shift and shimmer with the light.

On a clear day, the panorama stretches to the Mendip Hills in Somerset and the Forest of Dean in Gloucestershire. The bridge’s suspension towers rise like futuristic monuments, while the water below moves with powerful, tidal intent. It’s especially striking at dawn or dusk when golden light bathes the metal structure and the estuary glows with reflection.

A Crossing Full of Meaning

Crossing the Old Severn Bridge is more than just scenic—it’s symbolic. The act of walking between England and Wales, under your own steam, offers time to reflect on shared history and evolving identity. The old toll booths may be long gone, but the psychological “border” still lingers for many. Yet here, it’s all fluid—geography, heritage, and movement flowing together in one elevated line.

Oh – not to mention- the views are stunning!

For me, the foot crossing had personal meaning.  Having recently lost a lot of weight, and having tried unsuccessfully to even reach the start on a previous attempt, this was a completion of my personal challenge and I crossed with pride.

Walking the bridge was also my tribute to the monthly journeys my family did, having left Wales to find work when Barry Docks closed, my Mum and Dad came down to see friends and family every month, and crossing the bridge with them and my sister by car was a big part of my childhood – their hearts never left Wales although sadly none of them are with us now.  My friend and copywriter Trudy sadly lost her life a few years back, and also used to do Park Runs on the bridge.  They were all there with me in spirit that day.

As you can imagine I had a big lump in my throat when I reached the other side – but it is a great walk with or without the sentimentality.

Now, whether you end your journey in Chepstow, with its castle and charming high street, or loop back for a round trip, the walk is one of those rare UK experiences that feels both epic and accessible. It’s ideal for a Sunday afternoon outing, a fitness walk with a view, or a mindful moment away from daily noise, and it’s accessible for most – and dogs are welcome.  Meg the Frenchie loved the experience – and my devoted hubby had a bad back that day and accompanied me anyway.  It’s definitely something everyone should try once!

Tips for Walkers

• Getting there: Free parking is available for two hours at Aust Services, just off the M48. Alternatively, start from the Welsh side via the path near Junction 2 of the M48.

• Footwear: Trainers or walking shoes are suitable. The surface is paved but exposed to wind and weather.

• Weather: The estuary can be breezy—even on sunny days—so make sure you bring a jacket.

• Safety: While the path is separated from traffic, it is high up and exposed; take care with children and avoid in high winds.

Images all by Lisa Baker