Brailsford Way loop from Caernarfon — Snowdonia National Park

The Brailsford Way loop from Caernarfon offers a challenging road cycling experience through Snowdonia National Park. This difficult 46.4-mile (74.7 km) route features varied terrain, from easy valley gradients to full-on mountain climbs and exhilarating descents. You will gain 2973 feet (906 metres) in elevation over approximately 3 hours and 40 minutes, passing shimmering lakes like Llyn Dinas and Llyn Gwynant, and dramatic mountain passes. Expect spectacular and diverse landscapes, including breathtaking coastal views along the Menai Strait with glimpses of Anglesey.

This route is best suited for cyclists with good to very good fitness levels due to its demanding climbs, such as the iconic Llanberis Pass and Pen-y-Pass. While the route can be ridden in either direction, tackling Llanberis Pass from Llanberis presents a greater challenge. The surface is predominantly paved, ensuring a smooth ride despite the elevation changes. The Brailsford Way is designed to be accessible year-round, allowing you to plan your ride when conditions are most favorable for a long, demanding day in the saddle.

The Brailsford Way was launched in 2016 to honor Sir Dave Brailsford, who developed his cycling skills on these very roads. The route captures the essence of Snowdonia, offering a variety that changes by the mile, from expansive uplands to wooded valleys. You will also pass historical sites like Caernarfon Castle, a UNESCO World Heritage Site, and witness reminders of the region's slate industry, particularly striking when cycling through Blaenau Ffestiniog.