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Routes
Hiking trails & Routes
United Kingdom
Wales
North Wales
Gwynedd
Trawsfynydd

Rhinog Fawr and Bwlch Drws Ardudwy loop

Moderate

4.5

(32)

171

hikers

Rhinog Fawr and Bwlch Drws Ardudwy loop

03:15

9.80km

450m

Hiking

Hike the moderate 6.1-mile Rhinog Fawr and Bwlch Drws Ardudwy loop, gaining 1479 feet through rugged Welsh wilderness.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Parking

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1

1.47 km

Pistyll Gwyn Waterfall

Highlight • Waterfall

In my opinion, a body of water enriches every tour. If it presents itself as spectacularly as it sounds, all the better!

Translated by Google •

Tip by

2

3.46 km

Llyn Du (Rhinog Fawr)

Highlight • Natural

A small lake sat under the peak of Rhinog Fawr.

Translated by Google •

Tip by

3

4.63 km

Rhinog Fawr Summit Cairn

Highlight • Natural Monument

This is the rough part of Snowdonia. Not ‘trolleys in the canal’ rough, but a craggy, vegetated, wild kind of rugged. Stick to the paths, such as the Roman Steps (actually a medieval packhorse route) for the easiest going, or head off the beaten track to tackle the heather and rocks for full-on adventure.

Tip by

4

6.55 km

Bwlch Drws Ardudwy

Highlight • Trail

The pass between the breathlessly rugged Rhinogs Fach and Fawr is notorious. Many who have explored this way have been taken aback by a rough hewn landscape of concealed boulders and heather that doesn't give up its secrets lightly.

From the bwlch are superb views across to Lake Trawsfynydd and the Arenigs. Both Rhinog Fach and Rhinog Fawr can be ascended from here.

Tip by

B

9.80 km

End point

Parking

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Way Types & Surfaces

Way Types

6.40 km

1.24 km

1.23 km

933 m

Surfaces

4.48 km

2.85 km

1.28 km

952 m

233 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (690 m)

Lowest point (250 m)

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Weather

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Wednesday 6 May

12°C

4°C

-- %

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This route was planned by komoot.

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Frequently Asked Questions

How difficult is the Rhinog Fawr and Bwlch Drws Ardudwy loop?

This hike is generally rated as moderate to hard or strenuous. It's not recommended for inexperienced walkers due to its demanding nature, including steep ascents and descents, and sections that may involve scrambling. Good fitness and some countryside walking experience are essential.

What is the terrain like on this route?

The terrain is famously rugged and challenging. You'll encounter craggy peaks, windswept moorlands, and upland heath. Paths can be steep, rocky, and often indistinct, especially during descents. Expect concealed boulders, deep heather, and potentially wet and boggy sections. Summit approaches often involve loose scree and boulder clambering. While some parts follow ancient packhorse routes like the "Roman Steps", much of it is a "vast natural 'rockery'".

What natural features and viewpoints can I expect to see?

The loop offers superb remote scenery and extensive views. You'll pass the picturesque Pistyll Gwyn Waterfall and the wonderful mountain lake Llyn Du (Rhinog Fawr). The Rhinog Fawr Summit Cairn provides panoramic views over surrounding peaks, Cardigan Bay, and the Llŷn Peninsula. From Bwlch Drws Ardudwy, there are grand views across to Lake Trawsfynydd and the Arenigs.

Where can I park for the Rhinog Fawr and Bwlch Drws Ardudwy loop?

Specific parking details are not provided in the tour data, but trailheads in this remote area typically have limited parking. It's advisable to research local parking options near the start of the loop, such as lay-bys or small car parks, before your visit. Arriving early is often recommended, especially during peak season.

Is the Rhinog Fawr and Bwlch Drws Ardudwy loop dog-friendly?

Yes, dogs are generally allowed on this trail. However, as the route passes through the Rhinog National Nature Reserve, which is home to important habitats and species including feral goats, it is crucial to keep dogs under close control, preferably on a leash, to protect wildlife and livestock.

What is the best time of year to hike this trail?

The best time to hike is typically during the drier months, from late spring to early autumn (May to October), when weather conditions are more stable. However, even then, be prepared for changeable mountain weather. Winter hiking is possible for experienced individuals but requires specialist gear and skills due to snow, ice, and extreme conditions.

Are there any permits or entrance fees required for this hike?

No, there are no specific permits or entrance fees required to hike the Rhinog Fawr and Bwlch Drws Ardudwy loop, even though it passes through the Rhinog National Nature Reserve. Access to the reserve is generally free and open to the public, but visitors are expected to follow the Countryside Code.

Does this route connect with other trails?

Yes, sections of this route coincide with other established paths. Approximately 46% of the loop follows part of the Cambrian Way, and about 4% utilizes the historic Roman Steps, which is actually a medieval packhorse route.

What essential gear should I bring for this hike?

Given the rugged and challenging nature of the terrain, sturdy, waterproof hiking boots with good ankle support are highly recommended. Due to potentially indistinct paths and challenging navigation, especially in poor visibility, carrying a map and compass (and knowing how to use them) is essential. Layered clothing, waterproofs, sufficient food and water, and a first-aid kit are also crucial.

Is the Rhinog Fawr and Bwlch Drws Ardudwy loop suitable for families or beginners?

No, this loop is generally not recommended for inexperienced walkers, families with young children, or beginners. Its demanding nature, including steep, rocky, and potentially boggy terrain, requires good fitness, navigation skills, and prior countryside walking experience. There are more suitable, less challenging trails elsewhere in Snowdonia for those new to hiking.

How busy is this trail compared to other parts of Snowdonia?

The Rhinogydd mountain range, where this loop is located, is often referred to as one of the "last true wildernesses in Wales." This means you can expect a truly untamed hiking experience with fewer crowds compared to more popular areas of Snowdonia National Park, offering a sense of wild isolation.

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Trail Reviews

Ben Ankobiah
June 8, 2024, Rhinog Fawr Stomp

Just went up one of the Rhinogs with a couple of friends on a lovely day

Absolutely melting hot today hiking around the Rhinogs..even went swimming in the lake halfway up..also saw two lizards basking on the path before the bolted off into the undergrowth ...great hike just too darn 🔥

Lovely hike & scramble upto the trig via Pistyll Gwyn,, I wouldn't recommend doing the circular route we did as its quite boring & a hard slog!

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