4.6
(5866)
62,874
hikers
43
hikes
Dog friendly hiking trails around Llyn Cwellyn are set within Eryri National Park, characterized by a glacially carved valley. The landscape features the deep waters of Llyn Cwellyn, flanked by the rugged slopes of Mynydd Mawr and the Snowdon massif. Hikers can expect diverse terrain, including lakeside paths, woodlands, and more challenging mountain ascents. The area offers panoramic views encompassing the lake, Moel Hebog, and the distant Nantlle Ridge.
Last updated: May 17, 2026
4.5
(6)
48
hikers
7.40km
02:04
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(6)
46
hikers
10.8km
03:01
220m
220m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Sign up for free
5.0
(1)
7
hikers
15.3km
05:23
660m
660m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
4.3
(3)
63
hikers
6.58km
03:10
470m
470m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.8
(5)
37
hikers
15.4km
04:14
260m
260m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Snowdon (Welsh: Yr Wyddfa), 1085 meters high, is beautiful to see. Here you have a good view of it in clear weather.
6
0
Slightly above Llyn Llewelyn you have a nice view of Snowdon and the surrounding peaks. Enjoy this beautiful view.
6
0
Llyn Llywelyn is a small shallow mountain lake surrounded by open moorland and forests. It is a natural spot to pause, picnic and soak up the serene atmosphere before continuing your walk.
6
0
During a walk through Beddgelert Forest, you get a beautiful view of the surrounding mountains.
6
0
You start a hike in this forest by walking under a kind of gate. A nice start.
7
0
Spacious car park, called Rhyd Ddu Station Car Park, with some facilities such as toilets and the possibility to refill drinking water. Parking is paid (up to 4 hours: £5, all day £8). Next to the car park is a stop for the Welsh Highland Railway.
9
0
This lake is located near the village of Rhyd-ddu (not at the foot of Cadair Idris mountain). The lake has a surface area of 50 hectares and is situated 182 meters above sea level. According to John Leland in the 16th century, the original name was "Llyn Cadair yr Aur Frychin". The lake became famous through the sonnet Tyr Ysgol (The school building) by the poet TH Parry-Williams. (Wikipedia)
9
0
There are over 40 dog-friendly hiking trails around Llyn Cwellyn, catering to various skill levels. You'll find a good mix of easy, moderate, and challenging routes suitable for you and your canine companion.
Yes, Llyn Cwellyn offers several easy dog-friendly walks perfect for a relaxed outing. These often include gentle lakeside strolls or paths through woodlands. For a pleasant moderate option, consider the Llyn y Gadair – Pont Bethania Car Park loop from Rhyd-ddu, which offers scenic views without significant elevation gain.
The terrain around Llyn Cwellyn is diverse, ranging from relatively flat, well-trodden paths along the lake shore to rugged, rocky ascents on the surrounding mountains. You'll encounter woodlands, open moorland, and potentially some boggy sections, especially after rain. Always ensure your dog's paws are protected and they are comfortable with varied surfaces.
Yes, many of the dog-friendly trails around Llyn Cwellyn are circular, allowing you to start and end at the same point. An example of a moderate circular route is the Llyn y Gadair – Llyn Llywelyn loop from Rhyd-ddu, which provides a good distance and varied scenery.
For experienced hikers and their well-conditioned dogs, Llyn Cwellyn offers challenging routes with significant elevation. The Llyn y Gadair – Moel Lefn loop from Rhyd-ddu is a difficult option that takes you higher into the landscape, offering expansive views. Another demanding choice is the Llyn y Gadair – Y Garn Summit (Nantlle Ridge) loop from Rhyd-ddu, which includes a summit ascent.
Llyn Cwellyn is set in a stunning glacially carved valley. On your dog-friendly hikes, you'll encounter the deep waters of the lake itself, dramatic cliffs like Llechog, and the rugged slopes of Mynydd Mawr and the Snowdon massif. Woodlands are also present, particularly in the Nant y Betws valley, offering varied scenery for you and your dog.
Yes, many trails offer fantastic viewpoints. From higher elevations, you can enjoy panoramic views encompassing Llyn Cwellyn, Moel Hebog, and the distant Nantlle Ridge. While not a specific highlight, the Hafod Ruffydd Viewpoint – Llyn y Gadair loop from Rhyd-ddu is a moderate route that includes a named viewpoint, providing excellent vistas of the surrounding landscape.
Spring and autumn generally offer the most pleasant conditions for dog hiking around Llyn Cwellyn, with milder temperatures and beautiful scenery. Summer can be warm, so early morning or late afternoon hikes are advisable. Winter hikes are possible but require appropriate gear for both you and your dog due to potentially wet, cold, and icy conditions, especially at higher altitudes.
The Llyn Cwellyn area is highly rated by the komoot community, with an average score of 4.6 stars from over 5,800 ratings. Reviewers often praise the stunning mountain and lake views, the variety of trails suitable for different abilities, and the sense of tranquility found on many of the routes, making it a rewarding experience for both hikers and their dogs.
When hiking with your dog in Eryri National Park, it's crucial to keep them under close control, especially near livestock. Be aware of ground-nesting birds during spring and summer. Always carry water for your dog, and be mindful of the terrain, which can be rocky or boggy. Check for any temporary restrictions or local signage, particularly during lambing season.


Browse the best Hikes in other regions.