Yr Eifl and Tre'r Ceiri Circular

This route is considered to be of moderate difficulty. While many sections are straightforward, be prepared for rocky slopes and a 'scrambly' summit, especially when ascending Yr Eifl's peaks. Some areas can be boggy, and there's a significant elevation gain of over 600 meters. Shorter, easier options are available around the Tre'r Ceiri Hillfort if you prefer a less strenuous walk.

While there are various starting points for circular routes around Yr Eifl and Tre'r Ceiri, a common access point is from the village of Trefor. Look for available parking in or near Trefor, which provides a good base for starting the loop.

The terrain is quite varied. You'll encounter well-defined paths, but also rocky slopes, particularly on the ascent to Yr Eifl's summits. There are moorland sections, which can be boggy, and some routes include a steep road descent, for example, towards Nant Gwrtheyrn. Sturdy footwear is highly recommended.

The trail is rich in history and stunning views. Key highlights include the formidable Tre'r Ceiri Hillfort, one of Europe's best-preserved Iron Age settlements with its ancient hut circles. You'll also reach the Yr Eifl Summit, offering panoramic views. Other notable spots include the Yr Eifl Quarry and West End Cottages, and coastal vistas like the View from Trefor Pier and View of Sea Stacks, Tirwedd Cenedlaethol Llŷn.

Yes, dogs are generally welcome on this trail. However, as much of the route passes through open countryside where livestock may be grazing, it's crucial to keep dogs on a lead at all times. Please also ensure you clean up after your dog to help preserve the natural environment.

The trail can be enjoyed year-round, but spring and summer are particularly rewarding. During these seasons, the meadows are adorned with wildflowers, and you're more likely to experience clear days for the extensive panoramic views. Autumn offers beautiful colours, while winter can be challenging due to weather conditions and potentially boggy ground.

No, there are no specific permits or entrance fees required to hike the Yr Eifl and Tre'r Ceiri Circular trail or to access the Llŷn National Landscape. However, please respect the natural environment, stick to marked paths, and follow the Countryside Code to help preserve this special area.

Yes, the route intersects with several other paths. Approximately 42% of the trail follows sections of the Llŷn Coastal Path. You'll also find it crosses parts of the Morfa and Nant Bach Circular Walk, Bwlch yr Eifl, Stryd Yr Afon, and New Street.

The views from the summits, particularly Yr Eifl, are truly breathtaking. You can expect sweeping panoramas of the entire Llŷn Peninsula, the Isle of Môn (Anglesey), and the majestic mountains of Snowdonia. On exceptionally clear days, it's even possible to see as far as Ireland and the Lake District in England. The coastal views are also dramatic and stunning.

Some circular routes may pass through or near Nant Gwrtheyrn, an old quarry village that now hosts a Welsh language and heritage center, which includes a cafe. It's advisable to carry sufficient water and snacks, as facilities are limited directly on the trail itself.

Given the varied terrain and potential for changing weather, we recommend bringing sturdy hiking boots, waterproof and windproof layers, sufficient water, snacks, and a map or GPS device. Trekking poles can be helpful for the rocky and steep sections. Don't forget your camera for the incredible views!