A countryside cycling route along the Lôn Eifion route in North Wales

At around 20km on a flat, traffic-free path, this is a route designed for relaxed but longer cycling. It combines rural landscapes, mountain views and a historic railway trail, making it one of the best extended leisure rides in North Wales.

Discipline: Leisure / Traffic-free
Region: North West Wales (Eryri / Gwynedd)
Distance: 20 km one way
Total Elevation: Minimal
Difficulty: Easy to Moderate
Who is this route for? Leisure cyclists, families with older children and riders looking for a longer, traffic-free route.

Lôn Eifion is one of North Wales’ best traffic-free cycling routes, offering a peaceful journey through open countryside between Caernarfon and the village of Bryncir. Built along a former railway line, the trail provides a smooth and easy-to-follow path throughout.

Starting in Caernarfon, the route quickly leaves the town behind and opens into wide rural landscapes, with uninterrupted views towards the mountains of Eryri. The gentle gradients make it suitable for a wide range of cyclists, while the distance allows for a satisfying half-day or full-day ride.

When combined with Lôn Las Menai, this forms one of the longest continuous traffic-free cycling experiences in North Wales.

Lôn Eifion connects directly with Lôn Las Menai at Caernarfon, creating a longer, largely traffic‑free route through North Wales. Together, they offer a continuous ride from the Menai Strait to the edge of Eryri. 

Bike hire: 

• Local bike hire is available at Beics Antur Bikes in Caernarfon 

Refreshments:

There are multiple places to stop for refreshments along the route including:

• Cafés and restaurants in Caernarfon  including 
  • The Anglesey Arms - A dog-friendly family pub, serving classic pub food and drinks with a spacious beer garden.
  • Bonta Deli - A popular delicatessen and café, serving local Welsh and continental produce, homemade lunches and freshly baked treats.
  • Reuben’s Coffee House - serving speciality coffee, sweet treats and light bites.
  • La Marina Cei - a fusion food / small plates restaurant on the quayside.
  • Galeri Caernarfon - A vibrant waterfront arts centre, hosting live performances, films, exhibitions and events alongside a café bar.
• Refreshment stops in villages along the route
• Cafés, pubs and restaurants in Porthmadog, a few miles beyond the finish.

Services:

• Toilets and parking available at both ends of the route
• Rest areas and access points along the trail
• Good public transport links at Caernarfon and Porthmadog