Cwm Idwal – Y Garn Summit loop from Cwm Idwal National Nature Reserve

Hiking trails & Routes

Cwm Idwal – Y Garn Summit loop from Cwm Idwal National Nature Reserve

Moderate

4.7

(130)

1,147

hikers

Cwm Idwal – Y Garn Summit loop from Cwm Idwal National Nature Reserve

03:46

9.08km

620m

Hiking

Moderate hike. Good fitness required. Mostly walkable paths. Sure-footedness required. The starting point of the route is accessible with public transport.

Last updated: November 3, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Gwarchodfa Natur Genedlaethol Cwm Idwal

Parc Cenedlaethol Eryri

Waypoints

Start point

Bus stop

Get Directions

206 m

Idwal River Waterfall

Highlight • Natural Monument

Straight ahead over the bridge is the path to Cwm Idwal, but take time to see the waterfall and rapids on the River Idwal. Very pretty.

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1.01 km

Cwm Idwal

Highlight • Lake

A beautiful lake with stunning views to Tryfan and Pen Yr Ole Wen. There is a circular walk from the visitors centre which takes you around the lake or you …

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1.93 km

Devil's Kitchen (Twll Du)

Highlight • Natural Monument

Two paths lead from opposite sides of the lake to the top of the ridge near Twll Du (Devil's Kitchen). These paths become quite steep in places and have disappeared …

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2.60 km

Devil's Kitchen (Twll Du)

Highlight • Gorge

The moment you arrive at Devil's Kitchen it is easy to see why the dark crack which splits the rock of Clogwyn y Geifr (Cliff of the Goat) between Y …

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3.14 km

Llyn y Cŵn

Highlight • Natural

Take some time to enjoy the peaceful atmosphere at this small mountain lake Llyn Y Cwn (Welsh for Lake of the Dogs). The peak of Y Garn rises to the …

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4.49 km

Y Garn Summit

Highlight • Summit

Y Garn of the Glyderau is a mountain of two halves. On one side it drops in continuous green slopes to the pass of Llanberis. On its other it’s a …

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8.51 km

View of Tryfan

Highlight • Viewpoint

Here you have a great view of Tryfan, a mountain in the Ogwen Valley in Snowdonia. It is part of the Glyderau Group and is one of the most recognisable …

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9.08 km

End point

Bus stop

Way Types & Surfaces

Way Types

3.57 km

2.71 km

2.58 km

116 m

< 100 m

Surfaces

6.87 km

1.68 km

378 m

141 m

< 100 m

Elevation

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

Weather

Today

Sunday 8 November

10°C

3°C

20 %

Additional weather tips

Fog is expected during your activity. Consider wearing some high-visibility clothing so you’re easier to see.

to get more detailed weather forecasts along your route

Comments

April 27, 2022,Llyn Idwal – Stunning view of Tryfan Loop from Nant Peris

Solo adventure day 2... Llyn Idwal walk with amazing views across the Ogwen Valley. I was really lucky and had perfect weather with mostly blue skies and barely any wind... I know crazy right! You get great views of Crib Goch on a clear day. Would definitely recommend this walk has a nice little scramble down/up devils kitchen and you …