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Llyn Geirionnydd, near Llanrwst

Walking trail around two beautiful lakes

Llyn Geirionnydd

What's here

Baby changing facilities
Dogs welcome
Parking (accessible)
Picnic area
Walking trail
Two trails have been diverted to avoid forestry operations. The Geirionydd to Crafnant Trail goes to Crafnant on the forest road and returns to Geirionydd on the same route. The Crafnant View Trail has had to be diverted onto the same route, passing the viewpoint twice. Please follow diversion instructions on the trails.


Gwydir Forest Park

Gwydir Forest Park lies in the heart of the Snowdonia National Park.

Since Victorian times, generations of visitors have walked the woodland paths and fished the clear waters of the rivers here.

Today, waymarked walking trails allow visitors to explore this landscape of lakes, forests and mountains and to learn about its mining history.

There is also a mountain bike trail (which is graded red as it is only suitable for proficient riders), a forest garden and a waymarked walk to the famous Swallow Falls.

History of Gwydir Forest

Between 1850 and 1919, lead and zinc mining dominated the area. The legacy of old engine-houses, waste tips and reservoirs are characteristic features of the forest landscape today.

Nearly all of the lakes in the forest were created to serve the mines.

Several of the most important mines have been partially restored and made safe for visitors.

Nowadays, as you explore the extensive, rolling upland of wooded knolls, lakes and pastures, you will find it difficult to imagine that this was once a derelict industrial landscape.

Visiting Gwydir Forest Park

Gwydir Forest Park covers an area of over 72 square kilometres (28 square miles) and it encircles the village of Betws-y-Coed.

Waymarked walks start from the following parts of Gwydir Forest Park:

The Marin Trail, a red graded mountain bike trail with big climbs and singletrack only descents, starts from Sawbench.

Llyn Geirionnydd

Llyn Geirionnydd lake is three quarters of a mile long lake. It was reputedly the home of the 6th century poet Taliesin.

In the 1870s, this was a derelict industrial landscape - in fact, the car park lies on a waste tip near an old lead mine entrance.

Closures and diversions

Please note:

  • Sometimes we need to close or divert trails for your safety whilst we undertake maintenance work or forest operations
  • Occasionally we may have to close a site in extreme weather, such as high winds or snow and ice due to the risk of injury to visitors or staff
  • Please always follow any instructions onsite and make sure you follow any temporary diversion signs in place

Walking trail

The Geirionydd to Crafnant Trail is a waymarked walking route to nearby Llyn Crafnant where there is a circular walk around this reservoir with great views.

One of the Trefriw Trails, a series of nine waymarked walking trails from the village of Trefriw, leads to Llyn Geirionnydd.

Geirionnydd to Crafnant Trail

2.6 miles, 4.4 kilometres

This trail takes in the two beautiful lakes of Geirionnydd and Crafnant. The route heads off around the southern edge of Llyn Geirionnydd and offers fantastic views down the lake’s full length. It then descends steeply through the shady forest to a wonderful view across Llyn Crafnant and the other side of the valley.

Opening times

The toilets are open from 9am-7pm all year around. They are locked overnight.

How to get here

Llyn Geirionnydd is four miles west of Llanwrst off the B5106.

Car parking is free of charge.


Take the B5106 from Conwy or Betws y Coed to Trefriw, then follow signs for Llyn Geirionnydd.

Ordnance Survey map

Llyn Geirionnydd is on Ordnance Survey (OS) map OL 17.

The OS grid reference is SH 763 604.

Public transport

The nearest train station is in Llanrwst. For details of public transport visit

Contact details

Tel: 0300 065 3000



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