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United Kingdom
Wales
North Wales
Gwynedd

Tanygrisiau Reservior

The best waterfall hikes and walks around Tanygrisiau Reservior

4.5

(1526)

12,866

hikers

29

hikes

Waterfall hiking trails around Tanygrisiau Reservoir traverse a landscape shaped by slate mining heritage and the natural flow of water. The region features a mix of rugged hills, deep valleys, and the reservoir itself, providing varied terrain for hikers. Waterfalls are a prominent feature, often found along river courses that cut through the mountainous topography. The area's geology contributes to the formation of these cascades, creating distinct natural attractions.

Best waterfall hiking trails around Tanygrisiau Reservior

  • The most popular waterfall hiking route is Hiking loop from Blaenau Ffestiniog, a 5.7 miles (9.1 km) trail that takes 2 hours 38 minutes to complete. This moderate route offers views of the surrounding industrial and natural landscape.
  • Another top favourite among local hikers is View of Blaenau Ffestiniog – Cynfal Falls (Rhaeadr Cynfal) loop from Blaenau Ffestiniog, a difficult 14.8 miles (23.9 km) path. This trail features significant elevation gain and expansive views, including the Cynfal Falls.
  • Local hikers also love the Ffestiniog Railway Trail – Cwmorthin Falls loop from Llan Ffestiniog, a 7.1 miles (11.5 km) trail leading through historical railway paths and past Cwmorthin Falls, often completed in about 3 hours 37 minutes.
  • Hiking around Tanygrisiau Reservoir is defined by reservoir-side paths, historical railway trails, and routes leading to natural waterfalls. The network offers options for easy, moderate, and difficult ability levels.
  • The routes in Tanygrisiau Reservoir are highly rated by the komoot community with an average score of 4.5 stars from more than 1,400 reviews. More than 12,000 hikers have used komoot to explore Tanygrisiau Reservoir's varied terrain.

Last updated: May 11, 2026

3.0

(1)

9

hikers

#1.

Hiking loop from Blaenau Ffestiniog

9.11km

02:38

230m

230m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Tips from the Community

Chris
July 2, 2025, Cwmorthin Waterfall

Car park gets full up top so park sensibly park close to next car gives more space for others. Don’t park in front of gate as this is used by farmer Go Below and mountain/cave rescue. More parking available at bottom of hill.

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Can be a little dark here and muddy after heavy rain

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Pengwern Country House is a beautiful 4 star Bed and Breakfast, set within two acres of wild woods, overlooking the beautiful Lledr Valley, 1 mile from the bustling picturesque village of Betws-y-Coed, the 'Gateway' to the Snowdonia National Park. Ideally situated to explore Snowdonia and North Wales. Just a short walk from Pengwern, you will find Conwy Falls and Fairy Glen. Pengwern has a relaxed county house atmosphere, is traditional but upbeat, with log fires, slate floor, a large sitting room with pictures reflecting its artistic past.

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A large reservoir, and a part of the Ffestiniog power station.

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Nej
September 21, 2022, Cynfal Falls

The Cynfal Falls rush down this glacial gorge, filling the air with sound and spray. Find them near to the village of Llan Ffestiniog.

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You can drive almost directly to the waterfall by car. The car park is a popular starting point for hikes, even higher up.

Translated by Google

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Quite a bit of main road walking in the latter half

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One of Snowdonia's great waterfalls, Rhaeadr y Cwm is a series of impressive cascades. The several falls amount to a total of 350 feet (107 m). A trail runs to the north of this spectacle, while there's nearby parking on the B4391 road to Llan Ffestiniog.

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Frequently Asked Questions

How many waterfall hiking trails are available around Tanygrisiau Reservoir?

There are nearly 30 distinct waterfall hiking trails around Tanygrisiau Reservoir, catering to various skill levels from easy strolls to challenging full-day hikes.

Are there any easy waterfall hikes suitable for beginners near Tanygrisiau Reservoir?

Yes, there are 8 easy waterfall hikes in the area. These routes typically feature gentler terrain and shorter distances, perfect for those new to hiking or looking for a relaxed experience. While specific easy routes aren't highlighted here, you can find them by filtering for 'easy' difficulty on komoot.

What kind of views can I expect on the waterfall trails around Tanygrisiau Reservoir?

The trails offer a blend of natural beauty and industrial heritage. You'll encounter rugged hills, deep valleys, the reservoir itself, and of course, the prominent waterfalls. Many routes provide expansive views of the surrounding landscape, including glimpses of the historic slate mining areas.

Are there any circular waterfall walks around Tanygrisiau Reservoir?

Yes, many of the trails are designed as loops, allowing you to start and end at the same point. An example is the Hiking loop from Blaenau Ffestiniog, a moderate 9.1 km route that offers diverse scenery.

What do other hikers say about the trails in Tanygrisiau Reservoir?

The trails around Tanygrisiau Reservoir are highly regarded by the komoot community, with an average rating of 4.5 stars from over 1,400 reviews. Hikers often praise the varied terrain, the stunning waterfalls, and the unique blend of natural beauty with the region's rich industrial history.

Are there any trails that pass by the Ffestiniog Railway?

Yes, some routes incorporate sections of the historic Ffestiniog Railway Trail. For instance, the Ffestiniog Railway Trail – Cwmorthin Falls loop from Llan Ffestiniog is a moderate 11.5 km trail that combines railway paths with natural waterfalls.

Can I see Cynfal Falls on a hike in this area?

Absolutely. Cynfal Falls (Rhaeadr Cynfal) is a notable feature in the region. A challenging option to experience these falls is the View of Blaenau Ffestiniog – Cynfal Falls (Rhaeadr Cynfal) loop from Blaenau Ffestiniog, a difficult 23.9 km path with significant elevation gain.

Are there any moderate waterfall hikes for those with some experience?

The majority of waterfall trails around Tanygrisiau Reservoir are moderate, with 14 such routes available. These trails offer a good balance of challenge and accessibility. An example is the Coed Tŷ-coch Stream – Ffestiniog Railway Trail loop from Llan Ffestiniog, a 10 km moderate hike.

What should I wear for a waterfall hike in Tanygrisiau Reservoir?

Given the rugged terrain and potential for wet conditions near waterfalls, it's advisable to wear sturdy, waterproof hiking boots with good grip. Layered clothing is recommended to adapt to changing weather, and a waterproof jacket is always a good idea.

Are there any longer, more challenging waterfall hikes for experienced hikers?

Yes, for experienced hikers seeking a challenge, there are 7 difficult routes. These trails often feature significant elevation changes and longer distances. The View of Blaenau Ffestiniog – Cynfal Falls (Rhaeadr Cynfal) loop from Blaenau Ffestiniog is a prime example, covering nearly 24 km.

What is the best time of year to visit the waterfalls around Tanygrisiau Reservoir?

The waterfalls are often at their most impressive after periods of rain, typically in autumn or spring, when water levels are higher. However, the trails are accessible year-round, with each season offering a different perspective on the landscape.

Are there any routes that start from Llan Ffestiniog?

Yes, several routes begin from Llan Ffestiniog, offering convenient access to the trails. The Pengwern Country House – Cynfal Falls (Rhaeadr Cynfal) loop from Llan Ffestiniog is a moderate 13 km loop starting from there.

Most popular routes around Tanygrisiau Reservior

Hiking around Tanygrisiau Reservior

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