4.7
(282)
1,720
hikers
49
hikes
Hiking around Cemlyn Lakeon, located on Anglesey's wild northwest coast, offers diverse landscapes within an Area of Outstanding Natural Beauty. The region is characterized by a unique shingle ridge separating Cemlyn Bay from a brackish lagoon, providing varied terrain for walking. Coastal paths offer sea views and access to headlands, while the rolling hills are drumlins, relics of a past ice age. Trails range from easy strolls along the shingle to more undulating routes exploring the surrounding gorse and grassland.
…Last updated: June 24, 2026
4.7
(15)
71
hikers
12.3km
03:18
150m
150m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(2)
18
hikers
9.11km
02:24
80m
80m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.8
(6)
33
hikers
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(4)
26
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
10
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Popular around Cemlyn Lakeon
Church Bay is so called because of the nearby St Rhuddlad's Church, Llanrhuddlad which is visible from the bay.
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Great little feature to stumble across whilst out hiking.
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A beautiful viewpoint, small paths, a bit up and down, easily doable.
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If you are nervous of cows, best avoid this track, there are loads of them all over the place!
5
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A seriously shitty track, don't go wading through the manure, fìor goodness sake it'll never wash off!
5
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On a clear day you can see scotland😂
2
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Great views down the anglesey coastal path.
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Managed by the North Wales Wildlife Trust, Cemlyn Bay is a little wildlife haven nestled on the Anglesey coast. The shingle ridge and lagoon attract spectacular seabird colonies and a wide range of colourful butterflies and aquatic plants. The best time to visit is May to June when thousands of Sandwich, common and Arctic terns nest on the islands.
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Cemlyn Lakeon offers a diverse range of terrain. You'll find unique landscapes shaped by a natural elliptical shingle ridge, which separates Cemlyn Bay from a brackish lagoon. Trails also follow coastal paths with sea views, explore adjacent headlands, and traverse areas of gorse and grassland. The rolling hills in this part of Anglesey are drumlins, relics of a past ice age, adding to the varied landscape.
Yes, Cemlyn Lakeon provides a wide array of hiking options suitable for various abilities. Out of nearly 50 available routes, 23 are rated as easy, 23 as moderate, and 3 as difficult. This ensures that both casual walkers and experienced hikers can find a suitable trail.
Cemlyn Lakeon is renowned for its distinctive natural features. The most prominent is the naturally created elliptical shingle ridge, Esgair Cemlyn, which forms a brackish lagoon. This lagoon is considered the best example of a saline coastal lagoon in Wales. You can also observe specialized maritime plant communities adapted to coastal conditions, such as sea kale, sea beet, and yellow horned poppy, particularly along the shingle ridge and lagoon edges.
Absolutely. Cemlyn Lakeon is an internationally important site for birds, especially during the summer months (May to August). The lagoon hosts significant nesting colonies of Sandwich, common, and Arctic terns, with Cemlyn being the only breeding colony of Sandwich terns in Wales. You can observe these birds from a dedicated viewing area on the ridge. Other species like black-headed gulls, oystercatchers, and various wintering wildfowl also frequent the reserve.
Yes, there are several easy trails perfect for families. For instance, the Cemlyn Bay Nature Reserve loop from Cemlyn Lagoon is an easy 3.8 km path that explores the unique shingle ridge and brackish lagoon, offering great opportunities for wildlife spotting. Another easy option is the St Rhwydrus's Church loop from Cemlyn Lagoon, a 5.2 km trail that takes about 1 hour 21 minutes and passes a historic church.
Many trails around Cemlyn Lakeon are dog-friendly, but it's crucial to keep dogs on a lead, especially due to the sensitive wildlife, particularly during bird nesting season (May to August). The Cemlyn Nature Reserve is a Site of Special Scientific Interest, and protecting the bird colonies is paramount. Always check local signage for specific restrictions.
For those seeking a more challenging experience, the Traeth y Fydlyn – Church Bay (Porth Swtan) loop from Cemlyn Lagoon is a difficult 21.4 km route. This trail offers a substantial trek with more significant elevation changes, providing a rewarding challenge for experienced hikers.
The summer months, particularly May to August, are ideal for wildlife viewing, as this is when the tern colonies are nesting and most active. However, this period may also see restrictions on access to the very top of the shingle ridge to minimize disturbance. Spring and autumn offer pleasant hiking conditions with fewer crowds and opportunities to see migratory birds. Winter can be dramatic, with good chances to spot wintering wildfowl.
Yes, many of the routes in Cemlyn Lakeon are circular, allowing you to start and end at the same point. Examples include the popular View of the Anglesey Coast – Traeth y Fydlyn loop from Cemlyn Lagoon, a moderate 12.3 km trail, and the Hiking loop from Cemlyn Lagoon, which is a moderate 8.2 km option.
The trails in Cemlyn Lakeon are highly rated by the komoot community, with an average score of 4.8 stars from over 260 reviews. Hikers often praise the unique coastal scenery, the abundance of birdlife, and the varied terrain that offers both gentle strolls and more challenging treks. The opportunity to witness the internationally important tern colony is a particular highlight for many visitors.
Parking is typically available near Cemlyn Lagoon, which serves as a common starting point for many of the area's hiking trails. Specific parking details can often be found on individual route descriptions or local signage. It's always advisable to arrive early during peak season to secure a spot.
Yes, some walks in the area offer glimpses into local history. For example, the St Rhwydrus's Church loop from Cemlyn Lagoon passes by St Rhwydrus's Church, one of Anglesey's oldest pre-reformation churches, adding a spiritual and historical dimension to your hike.


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