4.5
(6733)
73,455
hikers
17
hikes
Hiking around Llyn Idwal offers a diverse landscape shaped by glacial activity within Eryri (Snowdonia) National Park. The region is characterized by Cwm Idwal, a cirque cradling Llyn Idwal, surrounded by the imposing peaks of the Glyderau range, including Tryfan and Glyder Fawr. Notable features include the dramatic Idwal Gorge and the chasm of Devil's Kitchen, providing varied terrain from rocky paths and scree slopes to polished rocks. The area's geology features volcanic and sedimentary rocks, forming distinct structures like the Idwal Syncline.
Last updated: June 25, 2026
5.0
(20)
261
hikers
17.9km
06:59
1,040m
1,040m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(5)
78
hikers
9.90km
02:58
290m
290m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.8
(9)
68
hikers
14.4km
04:59
740m
740m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5
hikers
7.94km
02:24
260m
260m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.3
(4)
48
hikers
15.7km
04:46
530m
530m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Often very busy, but with views like that it is not a surprise.
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Great view of the lake and the climb to come , stopped for a quick brew before the ascent up
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If you want to park here, you have to reserve a parking space in advance for 20 GBP. We didn't manage to do it, as everything was fully booked. You can then park in Llanberies and take the Sherpa Bus S1 or S2 to Pen y Pass. The bus runs every half hour. From Pen y Pass, you can then choose the Miner's Track or Pyg Track. Have fun!
2
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Currently parking is pre-booking only! All others are directed to the P+R in the village and need to get up by bus or walk.
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After a quarter of the way to the top of Snowdon via the Watkin path you will find the waterfalls of the Afon Cwm Llan. This is a wonderful place where you can relax, take a dip in the crystal clear pools or enjoy a picnic after a day of adventures.
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Llyn Idwal offers a variety of hiking experiences, with 16 distinct trails available that feature or lead to impressive waterfalls and dramatic landscapes. These routes range from easy lakeside strolls to challenging mountain ascents.
The waterfall hikes around Llyn Idwal cater to various fitness levels. There are 7 easy routes, perfect for a relaxed outing, 6 moderate trails for those seeking a bit more challenge, and 3 difficult routes for experienced hikers looking for demanding ascents and scrambles.
Yes, Llyn Idwal has several family-friendly options. The classic Llanberis Lake Railway – Llanberis Visitor Information Board loop from Llanberis is an easy 2.2 km trail that is suitable for families. The most popular route, the Llyn Idwal loop itself, is also generally considered easy and suitable for all fitness levels, offering stunning views of the surrounding mountains and cliffs.
Beyond the waterfalls, the region is rich in dramatic natural features. You can explore the spectacular glacial cirque of Cwm Idwal, the imposing peaks of the Glyderau range (including Tryfan and Glyder Fawr), the dramatic Idwal Gorge, and the chasm of Devil's Kitchen (Twll Du). The Idwal Slabs are also a prominent geological feature.
The trails around Llyn Idwal are highly rated by the komoot community, with an average score of 4.5 stars from over 6,300 reviews. Hikers frequently praise the breathtaking glacial landscapes, the clear waters of Llyn Idwal, and the diverse terrain that offers both gentle lakeside walks and challenging mountain scrambles. Many appreciate the dramatic views of peaks like Tryfan and the unique geological formations.
Yes, many of the trails around Llyn Idwal are designed as circular routes, allowing you to experience diverse scenery without retracing your steps. For instance, the Dolbadarn Castle – Llyn Padarn Trail loop from Llanberis is a moderate circular path featuring historical landmarks and lakeside views.
While Llyn Idwal is beautiful year-round, the best time for waterfall hikes is generally from late spring to early autumn (May to October). During these months, the weather is typically milder, trails are less icy, and the flora is vibrant. However, the waterfalls are often at their most powerful after periods of heavy rain, which can occur at any time of year.
Absolutely. For experienced hikers, the Pyg Track (Snowdon) – Snowdon Summit (Yr Wyddfa) loop from Pen-y-Pass is a difficult 18.9 km trail that ascends to the summit of Yr Wyddfa (Snowdon), offering expansive mountain views and a significant challenge. Routes leading to the Devil's Kitchen also involve steeper, more demanding climbs.
Parking is available at Ogwen Cottage, which serves as a popular starting point for many trails around Llyn Idwal. It's advisable to arrive early, especially during peak season, as parking can fill up quickly due to the area's popularity.
Yes, public transport options are available. Buses often run along the A5, which passes by Ogwen Cottage, providing access to the Llyn Idwal area. It's recommended to check local bus schedules for the most up-to-date information on routes and timings.
Beginners can enjoy the easy 5.3 km Dolbadarn Castle – National Slate Museum loop from Llanberis, which offers gentle terrain and scenic views. The popular Llyn Idwal loop itself is also an accessible option, providing stunning views without significant elevation gain.
Cwm Idwal is home to diverse wildlife. Keep an eye out for grey herons and common sandpipers near the lake. On the crags and mountainsides, you might spot shy mountain goats, peregrine falcons, ravens, choughs, brown hares, badgers, foxes, and the elusive pine marten.
For a longer, moderate experience, consider the Lake of the Servant's Spring – Bwlch Maesgwm loop from Llanberis. This 15.7 km trail leads through varied terrain with significant elevation gain, typically completed in about 4 hours 45 minutes, offering a rewarding journey through the landscape.


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