4.5
(5898)
65,413
hikers
14
hikes
Bus station hiking trails around Llyn Ogwen offer access to the dramatic landscapes of Eryri National Park (Snowdonia). The region is characterized by rugged mountain peaks like Tryfan and the Glyderau, serene glacial lakes such as Llyn Ogwen and Llyn Idwal, and steep-sided valleys. The terrain features rocky paths, boulders, and varied elevation changes, providing diverse hiking experiences.
Last updated: June 1, 2026
4.8
(19)
237
hikers
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(10)
165
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.8
(119)
1,096
hikers
9.74km
04:05
670m
670m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.8
(9)
84
hikers
17.1km
06:36
890m
890m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
4.5
(10)
198
hikers
12.3km
05:48
1,030m
1,030m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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The wide connecting ridge between Pen yr Ole Wen and Carnedd Dafydd provides a fine view looking back into Cwm Lloer, and the cliffs below Pen yr Ole Wen.
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The view from the summit of Pen yr Ole Wen is restricted as it has a rounded top. The best views across to the Glyders are to be had a couple of hundred yards before the summit.
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The Devil’s Kitchen, known in Welsh as Twll Du ("Black Hole"), is a massive, dark crack in the basaltic cliffs of Clogwyn y Geifr, towering over the southern end of Llyn Idwal. Why the Name? It earned its English nickname because of the plumes of mist or steam that frequently rise from the chasm. To early observers, this looked like smoke rising from a chimney, leading to the legend that the Devil was busy cooking inside. The Experience The Path: A steep, rocky "staircase" of boulders leads you from the lake shore up toward the Kitchen. It is a strenuous climb that requires sure-footedness, as the ancient rock is often wet and slippery. The Scenery: As you ascend, you pass the Devil’s Appendix (the waterfall mentioned earlier) and gain incredible views back over the Cwm Idwal "amphitheatre." Geology: The area is a world-class geological site. You can see the Idwal Syncline here—a dramatic U-shaped fold in the rock layers caused by tectonic pressure millions of years ago. Botanical Rarety: The humid, sheltered environment of the Kitchen is one of the few places in the UK where rare arctic-alpine plants, like the Snowdon Lily, have survived since the last Ice Age. Once you reach the top of the Kitchen, the landscape flattens out into a high plateau containing the small, eerie lake of Llyn y Cŵn.
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Canolfan Cwm IdwalClick to open side panel for more information is the primary visitor hub for the Ogwen Valley in Eryri National Park. Located along the A5 near National Trust - Ogwen CottageClick to open side panel for more information, it offers an interactive exhibition on local geology and 24-hour public toilets. Visitors can grab snacks and drinks from the kiosk before embarking on popular trails to Cwm Idwal and the surrounding Glyderau mountains.
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Pen yr Ole WenClick to open side panel for more information is the seventh-highest mountain in Wales and the southernmost peak of the Carneddau range. Standing at 978 meters (3,209 feet), its distinctive pyramid shape dominates the northern skyline of the Ogwen Valley, directly facing the jagged peaks of Tryfan and the Glyderau. Challenging Ascents: The mountain is famous for its steep, unrelenting climb from Ogwen Cottage. The most direct route involves a breathless scramble up the south ridge, which quickly gains height and provides dramatic aerial views of Llyn Idwal below. Panoramic Views: From the summit, you are rewarded with one of the finest 360-degree vistas in Eryri, looking deep into the glacial trough of Nant Ffrancon and across to the Snowdon massif. Gateway to the Carneddau: It serves as the primary gateway for hikers embarking on the long, high-altitude traverse toward Carnedd Dafydd and Carnedd Llewelyn, the range's higher neighbors. Rugged Terrain: Unlike the more popular Snowdon paths, Pen yr Ole Wen offers a wilder, rockier experience that requires good navigation skills, especially when cloud descends on its broad, stony plateau.
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Rhaeadr Idwal is the scenic waterfall formed as the outflow of Llyn Idwal tumbles toward the Ogwen Valley. Cascading over ancient volcanic rock, it is a highlight of the approach path from Ogwen Cottage. Nearby, the Devil’s Appendix plunges 93 meters down the cliffs of Twll Du, making it the tallest single-drop waterfall in Wales. These falls are most dramatic after heavy rain or when frozen into spectacular ice columns in winter.
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Llyn Idwal is a stunning glacial lake nestled in the Glyderau mountains of Eryri (Snowdonia), North Wales. Designated as Wales’ first National Nature Reserve, its dramatic landscape was famously studied by Charles Darwin to prove glacial action. Legend says the lake is named after a drowned prince and that birds refuse to fly over its crystal-clear waters.
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There are 14 hiking trails around Llyn Ogwen that are easily accessible from local bus stations. These routes offer a range of difficulties, from easy strolls to challenging mountain ascents, all starting conveniently close to public transport stops.
The terrain around Llyn Ogwen is diverse, featuring rugged mountain peaks like Tryfan and the Glyderau, serene glacial lakes such as Llyn Idwal, and steep-sided valleys. You can expect rocky paths, some uneven and occasionally boggy sections, especially on higher ground or after rain. Routes vary from well-trodden paths around lakes to challenging scrambles on mountain summits.
Yes, for an easier option, consider the Lake Idwal – View of Tryfan loop from Tryfan. This easy 4.3 km route takes approximately 1 hour 39 minutes and offers beautiful views of Llyn Idwal, a stunning glacial lake, without significant elevation gain. It's a great choice for families or those seeking a less strenuous walk.
Many trails offer views of iconic natural features. You can explore the stunning glacial lake of Llyn Ogwen itself, or visit Ogwen Visitor Centre and Snack Bar, a key hub in the valley. The dramatic peaks of Tryfan and the Glyderau mountains are prominent throughout the region, and the Nant Ffrancon Cycle Route offers excellent viewpoints of the valley.
Absolutely. The Lake Idwal – Y Garn Summit loop from Tryfan is a moderate 9.7 km circular hike that takes around 4 hours 2 minutes. This route offers rewarding views and takes you past Llyn Idwal towards the summit of Y Garn, providing a good balance of challenge and scenic beauty.
The Llyn Ogwen area is highly rated by the komoot community, with an average score of 4.6 stars from over 5,600 ratings. Reviewers often praise the dramatic mountain landscapes, the serene beauty of the glacial lakes, and the variety of trails that cater to different skill levels, all easily accessible by public transport.
Yes, for experienced hikers seeking a challenge, the Tryfan Summit – View of Tryfan loop from Tryfan is a difficult 6.1 km route that takes approximately 3 hours 16 minutes. This route involves significant ascent and scrambling to reach the iconic summit of Tryfan, offering breathtaking panoramic views.
For a longer and more strenuous adventure, consider the Carnedd Dafydd – View of Tryfan loop from Tryfan. This difficult 12.3 km hike takes around 5 hours 48 minutes and involves a substantial ascent to Carnedd Dafydd, one of the highest peaks in Wales, providing an epic mountain experience.
The best time to hike in Llyn Ogwen is generally from late spring to early autumn (May to October) when the weather is more stable, and daylight hours are longer. However, the region's dramatic landscapes are beautiful year-round. Be prepared for changeable mountain weather at any time, and always check local forecasts before heading out.
Yes, the Cwm Idwal – View of Tryfan loop from Tryfan is a moderate 6.5 km route that takes about 2 hours 35 minutes. This hike provides excellent views into Cwm Idwal, a classic example of a glacial cirque, known for its geological significance and stunning natural beauty.
The Llyn Ogwen Circular Walk is a popular moderate route offering stunning views of Tryfan and the Glyderau. While not explicitly listed in the bus station routes, it is a well-known path around the lake. You can find more information about this specific walk on the Visit Snowdonia website: Llyn Ogwen Circular Walk.


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