4.7
(894)
6,919
hikers
11
hikes
Dog friendly hiking trails around Llŷn AONB (AHNE Llŷn) traverse a diverse landscape featuring nearly 100 miles of coastline, with sweeping bays, dramatic cliffs, and sandy beaches. Inland, the terrain transitions to rolling hills and the Yr Eifl mountain range, which includes peaks reaching over 500 meters. This region offers varied hiking experiences, from coastal paths to more strenuous hill climbs, suitable for different abilities.
Last updated: July 10, 2026
4.6
(11)
54
hikers
4.21km
01:10
70m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.3
(9)
32
hikers
14.5km
04:43
610m
600m
Hike the Yr Eifl and Tre'r Ceiri Circular, a moderate 9.0-mile route with 1988 feet of gain, offering panoramic views and ancient hillforts.

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5.0
(1)
6
hikers
13.4km
03:34
140m
140m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
24
hikers
11.3km
04:42
570m
570m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
5.0
(3)
25
hikers
4.61km
02:17
350m
350m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
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Well worth the detour to visit the harbour and beach. Be sure to choose your route out of Trefor carefully. There is a very challenging hill if you are up for the challenge!!
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At 2,408 feet (734 m), Craig Cwm Silyn is the highest point on the Nantlle Ridge. It rewards with glorious views back along the snaking ridgeline, backed by the mighty Snowdon massif. The ascent of its northeast ridge is an entertaining scramble, while Craig Yr Ogof – the mountain's north-facing cliffs – provide plenty of rock climbing interest.
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Tre'r Ceiri is a truly spectacular hillfort dating back to the Iron Age. In English the name means 'town of the giants.' A giant of a hillfort it is too and one of the best preserved of all with stunning views across the Llŷn Peninsula. The settlement is surrounded by stone walls that are amazingly largely intact. Some of these walls are four metres high in places. Inside the fort are the remains of around 150 houses which in days gone by would have had turfed roofs. A truly amazing place to visit!
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There are fantastic views to be had from here towards the sea, to Trevor, to the sea stacks....everywhere!
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Tre'r Ceiri is a truly spectacular hillfort dating back to the Iron Age. In English the name means 'town of the giants.' A giant of a hillfort it is too and one of the best preserved of all with stunning views across the Llŷn Peninsula. The settlement is surrounded by stone walls that are amazingly largely intact. Some of these walls are four metres high in places. Inside the fort are the remains of around 150 houses which in days gone by would have had turfed roofs. A truly amazing place to visit!
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Marking the western end of the awesome Nantlle Ridge Mynydd Craig Goch stands at 610 m and offers amazing views west out to sea.
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Craig Cwm Silyn at 734 m is the highest point of the Nantlle Ridge. It's a rocky ridge of a summit with good views along the ridge or down into the valleys on each side. Normally run as part of the ridge traverse, it makes a great day out in either direction.
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Lovely views from the top, climb up isn't bad - can be slippery if its wet and in winter.
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Komoot offers a selection of 13 dog-friendly hiking trails in Llŷn AONB, catering to various skill levels. You'll find everything from easy coastal strolls to more challenging hill climbs, ensuring a suitable adventure for you and your canine companion.
Yes, there are easy options available. For a gentle coastal experience, consider the Headland loop from Trefor. This route offers pleasant views without significant elevation gain, perfect for a relaxed outing with your dog.
The Llŷn Peninsula offers incredibly diverse terrain. You can expect a mix of sweeping sandy beaches, dramatic cliff paths along the Llŷn Coastal Path, and rolling hills inland. Some trails, particularly those ascending peaks like Yr Eifl, will involve steeper, more rugged paths, while others are gentle coastal or countryside walks.
Yes, many of the trails are circular, allowing you to start and finish at the same point. For a moderate circular hike with historical interest, the Yr Eifl and Tre'r Ceiri Loop offers stunning views and includes the ancient Tre'r Ceiri Hillfort.
Many trails offer breathtaking natural sights. You might encounter the unique 'whistling sands' at Traeth Porthor, dramatic cliffs, and sweeping bays like Hell's Mouth. From higher vantage points, you can often spot Bardsey Island. The area is also known for its diverse marine habitats and birdlife, including choughs and puffins.
Absolutely. The Llŷn Peninsula is rich in history. A prominent example is the Tre'r Ceiri Hillfort, one of Britain's best-preserved Iron Age hillforts, which can be incorporated into hikes up Yr Eifl. You might also come across charming historic villages and ancient cultural sites.
The dog-friendly trails in Llŷn AONB are highly regarded by the komoot community, with an average rating of 4.7 stars from over 600 reviews. Hikers frequently praise the stunning coastal views, the variety of landscapes, and the well-maintained paths that make for enjoyable outings with their dogs.
For experienced hikers and their dogs, the ascent of Yr Eifl (The Rivals) provides a rewarding challenge. Routes like the Mynydd Craig Goch summit – Garnedd-goch Summit loop from Nebo offer significant elevation gain and panoramic views across the peninsula and Irish Sea.
Yes, many trails are accessible from or near charming villages. For example, the Trefor Beach – View from Trefor Pier loop from Trefor offers a lovely moderate walk starting directly from the village, providing coastal scenery and a chance to explore the local area.
Always check local signage for any restrictions, especially during lambing season or on nature reserves, where dogs may need to be on a lead. Be mindful of livestock in fields. Ensure your dog is fit enough for the chosen route, and always carry water for both yourself and your pet, especially on longer or more exposed coastal paths.
Yes, the Llŷn Peninsula is renowned for its spectacular viewpoints. Many trails lead to elevated positions offering expansive vistas. For instance, the peaks of Yr Eifl, including Yr Eifl Summit, provide panoramic views of the coast, countryside, and even Snowdonia on clear days.


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