10 Secret Walks in Snowdonia National Park

Snowdonia National Park is famed for its towering peaks, glassy lakes, and sweeping valleys, but beyond the well-trodden trails lies a world of hidden paths that few visitors ever discover.

These secret walks lead you into the quieter corners of the park, where birdsong echoes through mossy woodlands and waterfalls tumble unseen by most hikers.

Each trail holds its own story, whether it winds past forgotten ruins, meanders along riverbanks, or reveals panoramic views reserved for those willing to wander a little further from the main routes.

Choosing these paths allows you to connect with Snowdonia on a deeper level, away from the crowds that gather at Snowdon’s summit.

Here you can pause and breathe in the fresh mountain air, trace ancient stone walls, or watch the mist rise over tranquil valleys.

These walks are not just about exercise but about discovery, reflection, and a touch of adventure.

1) Aberglaslyn Pass

The Aberglaslyn Pass feels like a hidden world where the River Glaslyn carves its way through a steep, wooded gorge. Walking here, you are surrounded by the sound of rushing water and the soft rustle of leaves overhead.

The path hugs the river closely, with rocky outcrops rising sharply on either side, creating a dramatic yet intimate setting that feels both wild and safe.

As you follow the trail, the river alternates between calm pools reflecting the greenery and fast-moving rapids frothing white over boulders. The air is often cool and damp, filled with the scent of moss and river stones.

If you pause for a moment, you might spot dippers darting across the water or kingfishers flashing bright against the grey rocks. This is not just a walk but an immersion into nature’s theatre, where every turn offers a new scene.

Near the village of Beddgelert, the trail softens into open meadows, offering glimpses of mountains beyond. The contrast between the narrow gorge and the wider landscape creates a sense of journey and reward.

FAQs/Things to know when visiting Aberglaslyn Pass

Q1: Is the Aberglaslyn Pass walk suitable for families with children?

Yes, the Aberglaslyn Pass is a popular choice for families because the paths are mostly manageable and offer engaging scenery. Children often enjoy the bridges and riverside views, making it more than just a simple walk. However, parents should keep an eye on younger ones near the water and uneven paths.

Q2: What wildlife might I see along the Aberglaslyn Pass?

The gorge is home to birds such as dippers, wagtails, and the occasional kingfisher, all of which thrive along the fast-flowing Glaslyn River. In the surrounding woodlands, you may also spot redstarts and woodland butterflies during warmer months. Otters have been seen here too, although sightings are rare.

Q3: How long does the Aberglaslyn Pass walk take?

The main stretch of the Aberglaslyn Pass can be enjoyed in around one to two hours, depending on your pace. Many walkers choose to extend the journey by continuing into the surrounding hills or linking with other local trails. Because it begins near Beddgelert, there are plenty of opportunities to stop for refreshments after the walk.

2) Cwm Idwal

Cwm Idwal is a glacial valley wrapped in stark cliffs and filled with legend and natural beauty. The path begins gently, taking you through a landscape shaped by ice and time, before opening into a breathtaking amphitheatre of rock.

At its heart lies Llyn Idwal, a dark, mirror-like lake that reflects the cliffs above.

The atmosphere here feels ancient, almost otherworldly, with steep crags such as the Devil’s Kitchen looming overhead. Even on clear days, the valley often holds a veil of mist, lending it a mysterious quality.

The air is fresh and carries the faint scent of heather and damp stone, while the silence is broken only by the cry of ravens circling high above. Walking here, you are surrounded by geology that tells the story of Snowdonia’s dramatic past.

As you loop around the lake, each angle reveals a different mood, from tranquil waterside to imposing rocky slopes.

FAQs/Things to know when visiting Cwm Idwal

Q1: Is Cwm Idwal an easy walk for beginners?

Cwm Idwal is often considered one of the most accessible mountain walks in Snowdonia, making it suitable for beginners. The path around the lake is clear and well-trodden, though some sections can be rocky underfoot. Beginners should wear sturdy shoes and take their time to enjoy the views.

Q2: Why is Cwm Idwal famous in Welsh folklore?

Cwm Idwal is tied to the legend of Prince Idwal, who was said to have drowned in the lake centuries ago. Locals believed the waters were cursed, and stories of strange happenings have lingered for generations. These tales add a mystical atmosphere to an already dramatic landscape.

Q3: How long does it take to walk around Llyn Idwal?

Most visitors complete the loop around the lake in about one to two hours, depending on how often they pause. The trail is not overly long, but many walkers choose to linger and take in the breathtaking scenery. It is easy to extend the walk by heading toward the Devil’s Kitchen or linking with nearby Glyderau routes.

3) The Mawddach Trail

The Mawddach Trail follows the course of an old railway line along the wide, tidal Mawddach Estuary. Unlike many of Snowdonia’s rugged climbs, this path offers a gentle yet stunning experience, perfect for slow exploration.

The estuary stretches before you in silvery light, with Cadair Idris rising in the distance.

As you walk, the landscape shifts with the tide, revealing sandbanks, mudflats, and flocks of wading birds. The salty tang of sea air mixes with the earthy scent of marshland plants.

Along the way, remnants of the railway’s industrial past peek through, adding a sense of history to the natural surroundings. The wide trail allows space for walkers, cyclists, and even horse riders, yet it never feels crowded.

The highlight for many is crossing the wooden bridge at Barmouth, where sea and river meet beneath the mountains. From here, the views stretch endlessly, rewarding those who take the time to savour them.

FAQs/Things to know when visiting The Mawddach Trail

Q1: Is the Mawddach Trail suitable for cycling as well as walking?

Yes, the Mawddach Trail is widely used by both walkers and cyclists, thanks to its broad, level path. Cyclists enjoy the flat route that follows the old railway line, making it ideal for families. There are several places along the way to rest, enjoy a picnic, or watch the birdlife. It is one of the best mixed-use trails in Snowdonia.

Q2: What kind of wildlife can I expect to see along the Mawddach Estuary?

The estuary is a haven for birdlife, with species such as oystercatchers, curlews, and herons regularly spotted. During migration seasons, flocks of waders create a spectacle against the shifting tides. The surrounding marshes also host butterflies and small mammals, adding variety to the walk.

Q3: How long does it take to complete the Mawddach Trail on foot?

The full trail stretches around nine miles from Dolgellau to Barmouth, taking about three to four hours to walk at a steady pace. Many people choose to walk shorter sections and return by bus or train. The highlight is often the crossing into Barmouth, which rewards walkers with coastal views.

4) Llyn Dinas

Llyn Dinas lies quietly between steep hillsides, its calm waters reflecting the changing sky. This hidden lake feels worlds away from the busy paths nearby, offering stillness and space to breathe. The trail that circles the lake is soft underfoot, bordered by ferns, moss, and old stone walls.

As you walk, the sound of water gently laps against the shore while birds dart overhead. In autumn, the surrounding trees flame with colour, their reflections turning the water into a moving canvas.

On misty mornings, the lake seems to float in a dream, with the hills vanishing into clouds. Every step around its edge brings a new perspective, from shady woodlands to open views of mountain ridges.

Close to Beddgelert, the walk carries echoes of history and legend, including tales of Welsh princes and long-lost battles.

FAQs/Things to know when visiting Llyn Dinas

Q1: How long does it take to walk around Llyn Dinas?

The loop around Llyn Dinas typically takes one to two hours, depending on your pace and how often you stop. The trail is fairly flat, which makes it suitable for a relaxed stroll. Many walkers choose to linger by the lakeshore to enjoy the peace and quiet. It is an easy yet beautiful route in the heart of Snowdonia.

Q2: Can I swim in Llyn Dinas?

Wild swimming is possible in Llyn Dinas, and many people enjoy dipping into its clear waters. However, the lake can be very cold, even in summer, so swimmers should take care. Always enter gradually and avoid swimming alone to ensure safety. The setting makes for a refreshing and memorable experience in Snowdonia.

Q3: Is Llyn Dinas walk family-friendly?

Yes, the path around Llyn Dinas is gentle enough for families with children. Young walkers often enjoy spotting fish in the shallows and exploring the woodland edges. Parents should supervise children near the water, as there are no barriers along the shore. Overall, it is a safe and engaging walk that suits all ages.

5) Cwm Bychan

Cwm Bychan is a secluded valley that feels untouched, hidden deep in Snowdonia’s western hills. The path into the valley passes through rugged moorland where sheep graze under open skies.

Soon the land folds into a narrow glen, where streams weave among rocks and the sound of trickling water accompanies your steps. The valley is dotted with ancient stone remains, including standing stones and old farm walls.

Walking here, you feel the presence of generations who once made their lives in these remote hills. In summer, the air hums with insects, while skylarks sing overhead. The surrounding slopes glow with heather, painting the valley purple and green.

Reaching the heart of Cwm Bychan brings a sense of calm, as though you have stepped into a hidden sanctuary. Few visitors make it here, which gives the walk an almost secret quality.

Every bend in the path opens to fresh views of quiet ridges and tumbling streams. Cwm Bychan is the kind of place that rewards those who wander off the beaten track.

FAQs/Things to know when visiting Cwm Bychan

Q1: Where is Cwm Bychan located in Snowdonia?

Cwm Bychan lies in the western part of Snowdonia, near Harlech, tucked away from the main tourist routes. It can be reached by a winding road that adds to the sense of adventure. The valley is surrounded by remote hills, making it a peaceful escape. Its location ensures it remains one of Snowdonia’s lesser-known gems.

Q2: Is Cwm Bychan suitable for long hikes?

Yes, Cwm Bychan is an excellent starting point for longer treks into the Rhinogydd mountains. The valley links into rugged trails that challenge even experienced walkers. For those who want something shorter, the valley itself offers rewarding walks without venturing far. This flexibility makes it a versatile destination for hikers of all levels.

Q3: What makes Cwm Bychan unique compared to other Snowdonia walks?

Cwm Bychan stands out for its untouched, wild character and its sense of ancient history. Unlike busier areas, it feels hidden away, with fewer visitors and more space to enjoy solitude. The mix of streams, standing stones, and heather-clad slopes creates a distinctive atmosphere.

6) Llyn Geirionydd

Llyn Geirionydd stretches long and narrow, surrounded by steep wooded hillsides. Known as the legendary home of the Welsh bard Taliesin, the lake carries an air of story and song.

The trail here combines natural beauty with echoes of culture, offering a walk rich in both scenery and heritage.

The path takes you along the lakeshore, where the water sparkles in sunlight and ripples with passing breezes. In the mornings, mist often clings to the trees, making the lake appear like a painting.

The surrounding forest smells of pine and damp earth, giving the walk a refreshing atmosphere. Along the way, old mine workings remind you of the valley’s industrial past.

The lake is popular with kayakers and swimmers, yet walking the full circuit reveals quieter corners. From certain points, you can glimpse the nearby hills opening toward the Conwy Valley.

The combination of water, forest, and myth creates a unique experience. Llyn Geirionydd feels both lively and peaceful, a balance that keeps visitors returning.

FAQs/Things to know when visiting Llyn Geirionydd

Q1: Can you swim or kayak in Llyn Geirionydd?

Yes, Llyn Geirionydd is one of the few lakes in Snowdonia where boating and swimming are officially allowed. Kayakers often enjoy paddling along its length, while swimmers favour the calm, sheltered water. The lake remains cold year-round, so caution is advised. These activities add variety to the experience of visiting this scenic lake.

Q2: How long is the walk around Llyn Geirionydd?

The circuit around the lake usually takes one to two hours, depending on pace and stops. The paths vary between lakeside stretches and wooded tracks. Some parts can be muddy after rain, so good footwear is helpful. The effort is well rewarded by the changing views along the route.

Q3: What is the legend of Taliesin at Llyn Geirionydd?

Taliesin, one of the most famous poets of Welsh tradition, is said to have lived by Llyn Geirionydd. Stories claim he composed his verses here, surrounded by the natural beauty of the valley. These legends give the lake a special cultural significance that enhances the walk.

7) Llyn Crafnant

Llyn Crafnant lies in a valley framed by craggy hills and dense woodland. The lake feels tucked away, giving walkers the sense of finding a secret spot in the heart of Snowdonia. Its shores are lined with pine trees, their scent drifting in the breeze and adding freshness to the air.

Walking around the lake takes you through a mix of shaded woodland and open stretches. The water changes colour with the light, from deep blue to silver-grey.

In spring, wildflowers brighten the path, while autumn paints the hillsides in rich reds and golds. The quiet atmosphere makes it a perfect place to pause and simply listen to nature.

Halfway along the walk, the view opens out to reveal dramatic peaks rising behind the lake. The reflections of these mountains shimmer across the water, creating postcard-worthy scenes.

FAQs/Things to know when visiting Llyn Crafnant

Q1: Is Llyn Crafnant easy to reach by car?

Yes, Llyn Crafnant can be reached by a narrow road from Trefriw, though the final stretch can feel steep and winding. Parking is available near the lake, making it convenient for walkers. The road itself adds a sense of adventure to the journey. Once there, the lake feels remote yet accessible.

Q2: Can you link Llyn Crafnant with other walks?

Many walkers link Llyn Crafnant with Llyn Geirionydd via a scenic forest trail. This creates a longer circular walk that combines two beautiful lakes. The combined route is popular for those wanting a full day of gentle walking. It is an excellent way to explore more of Snowdonia’s hidden valleys.

Q3: Are there facilities near Llyn Crafnant?

Yes, during the busier months there is often a small café near the lakeshore, which serves refreshments to walkers. Picnic spots are scattered around the lake, offering places to rest. Basic facilities like toilets are available seasonally but should not be relied on in quieter months.

8) Nantcol Waterfalls

Nantcol Waterfalls is a secret paradise where rushing water tumbles through rocky pools deep in the foothills of Rhinog Fawr. The trail begins gently, following the course of the river as it dances over smooth stone. With every step, the sound of water grows louder until you are surrounded by a chorus of falls.

The woodland here is lush, with moss carpeting boulders and ferns arching overhead. Sunlight filters through the leaves, creating shifting patterns across the path.

The air is cool and damp, carrying the fresh scent of river spray. Children and adults alike often pause to dip their toes in the shallow pools.

Higher up, the waterfalls tumble with even greater force, crashing into dark clefts in the rock. Wooden bridges and stepping stones add a playful element to the walk.

FAQs/Things to know when visiting Nantcol Waterfalls

Q1: Is the Nantcol Waterfalls walk suitable for children?

Yes, Nantcol Waterfalls is very popular with families thanks to its short, engaging trails and playful stepping stones. Children enjoy exploring the pools and bridges, which adds adventure to the walk. Parents should supervise near fast-flowing water to ensure safety. Overall, it is one of the best family-friendly walks in Snowdonia.

Q2: How long does it take to explore the waterfalls?

Most visitors spend about one to two hours exploring the trails around Nantcol Waterfalls. The walk itself is not long, but the scenery invites people to pause and enjoy the pools. Many families bring picnics to make a day of it. It is as much about relaxing in nature as it is about walking.

Q3: Are there facilities at Nantcol Waterfalls?

Yes, there is a campsite and parking area near the entrance to the trails, which makes visiting easy. Toilets and basic amenities are available, making it practical for families. Seasonal refreshment facilities sometimes operate nearby as well. This adds convenience to what is otherwise a wild and natural experience.

9) Abergwyngregyn to Aber Falls

The walk to Aber Falls begins in the small village of Abergwyngregyn and leads into one of Snowdonia’s most striking valleys. The path starts gently, winding through open farmland framed by rising hills. Soon you find yourself in a dramatic glacial valley where the river runs bright and clear.

As you continue, the roar of water grows louder, guiding you toward the falls. The path is wide and well-kept, making it an easy route for all ages. The valley is alive with birdsong and, in spring, dotted with wildflowers that colour the meadows. The clean mountain air here feels especially invigorating.

Finally, you arrive at Aber Falls itself, where water plunges nearly 40 metres into a rocky basin. Spray cools the air, and rainbows often appear in the mist on sunny days.

Standing at the base, you feel the sheer power of the falls combined with the tranquillity of the valley. It is a walk that blends accessibility with unforgettable scenery.

FAQs/Things to know when visiting Abergwyngregyn to Aber Falls

Q1: How long does the walk to Aber Falls take?

The walk from Abergwyngregyn to Aber Falls usually takes about an hour each way. The path is easy to follow, which makes it suitable for families and casual walkers. Many visitors choose to linger at the base of the falls before returning. Overall, it is a half-day adventure that fits easily into most schedules.

Q2: Is Aber Falls accessible for pushchairs or wheelchairs?

The main path is fairly level and wide, and parts of it are suitable for pushchairs. However, the final section near the falls is uneven and rocky, which can be challenging for wheels. Visitors with mobility needs may still enjoy much of the valley. Careful planning ensures a rewarding experience for everyone.

Q3: Can you swim at Aber Falls?

Swimming is not advised at Aber Falls due to the strong currents and rocks at the plunge pool. The water is cold year-round, and conditions can be unpredictable. Many people paddle in the shallower streams lower down the valley instead. This allows you to enjoy the water safely while still experiencing the beauty of the falls.

10) Cwm Pennant

Cwm Pennant is a long, glacial valley that remains one of Snowdonia’s most secluded treasures. The walk begins along winding lanes before opening into a wide valley framed by mountains. Sheep graze in the meadows, and the distant sound of streams echoes through the still air.

Stone walls crisscross the valley floor, reminders of a time when farming shaped life here. The path winds past abandoned farmsteads, their ruins slowly being reclaimed by nature. Skylarks sing overhead, and red kites circle gracefully against the sky. This sense of quiet history is part of the valley’s charm.

As you walk deeper into Cwm Pennant, the valley narrows, and the hills rise more steeply. The views back toward the coast are breathtaking, especially in the golden light of evening.

Few visitors make it this far, so the sense of solitude is profound. Cwm Pennant is often called the loveliest valley in Wales, and for those who find it, the title feels well deserved.

FAQs/Things to know when visiting Cwm Pennant

Q1: Where does the Cwm Pennant walk start?

The walk into Cwm Pennant usually begins near the small hamlet of Garndolbenmaen. From here, the valley stretches inland for several miles. The starting point feels remote, adding to the sense of discovery. This makes it ideal for those seeking a quieter side of Snowdonia.

Q2: How long is the Cwm Pennant walk?

The full valley walk can take around three to four hours depending on how far you venture. Some walkers choose to turn back earlier, while others explore the connecting paths into the surrounding hills. The valley’s length allows for flexibility and makes it suitable for varied walking abilities.

Q3: What makes Cwm Pennant so special?

Cwm Pennant is unique because of its combination of isolation, beauty, and history. The valley feels untouched by mass tourism, offering peace and solitude. Its ruined farms and stone walls give it a timeless character. This mixture of wildness and heritage makes it one of Snowdonia’s most enchanting secret walks.

Snowdonia National Park is celebrated for its dramatic peaks, but its true charm often lies in the quieter corners hidden from the crowds.

The ten secret walks we have explored reveal a side of the park that is rich in history, alive with wildlife, and filled with moments of tranquillity.

From the rushing energy of Nantcol Waterfalls to the timeless calm of Cwm Pennant, each walk offers a unique perspective on this extraordinary landscape.

Choosing these lesser-known trails allows you to experience Snowdonia in a more personal way. You can pause by a still lake, wander through ancient valleys, or listen to the echo of waterfalls without distraction.

These walks prove that adventure in Snowdonia does not always require climbing its highest peaks. Instead, it can be found in quiet moments, hidden paths, and unexpected views.

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