Lleyn Peninsula loop of Yr Eifl
Lleyn Peninsula loop of Yr Eifl
4.3
(3)
13
riders
01:54
22.2km
490m
Mountain biking
This moderate 13.8-mile mountain bike loop on the Lleyn Peninsula offers spectacular views and challenging terrain around Yr Eifl.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
AHNE Llŷn
Waypoints
Start point
Parking
Get Directions
14.7 km
Highlight • Monument
Tip by
16.6 km
Highlight (Segment) • Trail
Tip by
20.8 km
Highlight • Historical Site
Tip by
22.2 km
End point
Parking
Way Types & Surfaces
Way Types
12.0 km
7.85 km
2.44 km
Surfaces
7.97 km
4.67 km
2.75 km
2.61 km
2.36 km
1.88 km
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Elevation
Highest point (350 m)
Lowest point (50 m)
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Weather
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Wednesday 13 May
12°C
7°C
55 %
Additional weather tips
Max wind speed: 32.0 km/h
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This route was planned by komoot.
The average mountain biker can expect to complete this 22.2-kilometer loop in approximately 1 hour and 54 minutes. However, this duration can vary based on your fitness level, riding speed, and how often you stop to enjoy the views or navigate challenging sections.
The loop offers a diverse surface, including paved sections, asphalt, gravel, natural trails, and unpaved paths. You'll encounter rocky scrambles and old quarry workings. Be aware that some segments can be 'greasy' or slippery with wet roots, especially in damp conditions, potentially requiring you to push your bike at times.
This trail is classified as a 'moderate mountain bike ride' and demands good fitness and advanced riding skills. It corresponds approximately to an STS S2 rating. While not always overly technical, certain sections can be challenging, so it's generally not recommended for beginners.
The route offers spectacular panoramic views across the entire Lleyn Peninsula, Snowdonia National Park, and the Tudwal Islands on clear days. You'll pass by the poignant Yr Eifl Miners' Memorial Stones, experience the thrilling Old Quarry Descent, Llŷn Peninsula, and get a fantastic View of Tre'r Ceiri Iron Age Hill Fort, one of the best-preserved in the UK.
While specific parking details aren't provided in the route data, trails in this area typically have designated parking near popular access points or villages. It's advisable to check local signage or online maps for parking options closest to the start of the loop, often in or near the villages at the base of Yr Eifl.
Yes, dogs are generally allowed on trails in the Yr Eifl area. However, as the route passes through areas with sheep and potentially other livestock, it is crucial to keep your dog under strict control, preferably on a leash, to protect wildlife and farm animals.
The best time to ride is typically during the drier months, from late spring to early autumn (May to September). This avoids the 'greasy' and slippery conditions that can occur with wet roots and rocky scrambles in damp weather. Clear days offer the most expansive views.
The Lleyn Peninsula loop of Yr Eifl is located within the Yr Eifl National Nature Reserve. Generally, there are no specific permits or entrance fees required for public access to the trails within the reserve. However, always respect local regulations and signage.
Yes, the route incorporates sections of other paths. You will ride along parts of the Llŷn Coastal Path and Bwlch yr Eifl. Smaller segments also follow Stryd Yr Afon and New Street.
While the trail itself is remote, the Lleyn Peninsula has several villages nearby. You can typically find cafes, pubs, and other amenities in towns like Nefyn or Clynnog Fawr, which are a short drive from the Yr Eifl area, perfect for post-ride refreshments.
The most common wildlife you'll encounter are sheep, which graze freely across the landscape. The area is also home to various bird species. Keep an eye out for yellow gorse, which adds a vibrant splash of color to the scenery.