GPS Cycle and Walking Routes

Cwm Idwal

2 miles (4 km)

Explore this hanging valley in Snowdonia and enjoy some of the most spectacular mountainous scenery in the country. In aRadio Times poll in 2005, Cwm Idwal was ranked the 7th greatest natural wonder in Britain.
This circular walk begins at the car park next to the western end of Lllyn Ogwen. You then pick up a footpath which ascends to the beautiful Llyn Idwal. It's a simply wonderful spot with the crystal clear lake and surrounding mountains forming a spectacular natural amphitheatre. The footpath runs along the edge of the lake to the Darwin Idwal Boulders and then to the Idwal Slabs. The slabs were used as a training ground for Mount Everest conqueror Edmund Hillary.
As you pass the lake you close in on the impressive headwall of Cwm Idwalknow as 'The Devil's Kitchen'. From here the route descends on the western side of Llyn Idwal to Llyn Ogwen and the finish point.
If you would like to continue your walking in the area then you could climb the challenging Tryfan mountain. The route starts from the eastern end of Llyn Ogwen which is a great place to extend your walk.


LL24 0EU - Please note: Postcode may be approximate for some rural locations

Cwm Idwal OS Map - Mobile GPS OS Map with Location tracking

Cwm Idwal Open Street Map - Mobile GPS Map with Location tracking


The Ogwen Snack Bar is located at the western end of Llyn Ogwen and a good option for some post walk refreshments. It's open seven days per week for most of the year – opening only at weekends during the winter months. The popular snack bar can trace its history back to the early 1900’s when it was precariously perched on rocks at the head of the waterfall from which it takes its name. Known throughout the world it has its place in the mountaineering history in this part of Snowdonia and has been run by the same family since 1953. It moved to its current location over forty years ago to the newer premises incorporating Snowdonia National Park warden office and public toilets. It sells a range of drinks, snacks, pasties, paninis and locally baked cakes. There's an outdoor seating area where you can enjoy your food with fine views of the surrounding mountains. You can find the snack bar between Llyn Ogwen and Llyn Idwal at postcode of LL57 3LZ for your sat navs.

Cycle Routes and Walking Routes Nearby

Elevation Profile


GPS Files

GPX File

Cwm Idwal.gpx (On Desktop:Right Click>'Save As. On Ipad/Iphone:Click and hold>Share>Save to Files')

Memory Map Route

Cwm Idwal.mmo (On Desktop:Right Click>'Save As. On Ipad/Iphone:Click and hold >Share>Save to Files)