This is one of my favourite walks. A circular loop from the Youth Hostel by Llyn Ogwen, taking in some of Snowdonia’s fine mountain peaks.
Do be aware that some of the going is quite rough, there are sections of scrambling on scree and that in winter you are likely to need crampons & ice axe. That said, it’s an exhilarating mountain walk with fine views.
As one leaves the car parking area and follows the well made path to Llyn Idwal, it’s great to view the imposing cliffs above you with the knowledge that you’ll soon be walking above them. Upon reaching the lake we turn right to head up the slopes of Y Garn. This path is steep & particular care is needed in icy conditions. As you climb, do take time to look around and take in the views; looking east across Llyn Ogwen with Tryfan on its righthand shore or looking north along the Nant Ffrancon valley and out to sea.
Upon reaching the summit of Y Garn, fine panoramic views are available, looking over most of Snowdonia. Again take in Tryfan to the east or look south-west to Snowdon & her relatives.
Now we must descend about 250m southwards to Llyn y Cwn before ascending the shaded scree slope to the summit of Glyder Fawr, the highest point on this walk. The rough & jagged rocks of Glyder Fawr provide quite the dramatic viewpoint. Now we can enjoy the high level walk eastwards from Glyder Fawr, via Castell y Gwynt to the similarly rocky summit of Glyder Fach.
Whilst it is possible to descend almost directly via the eastern scree slope of Glyder Fach to Bwlch Tryfan, it may be more enjoyable to take the slightly longer route to Bwlch Tryfan by diverting towards Llyn Caseg-fraith, as shown on the map.
Once we have reached Bwlch Tryfan, follow the rock strewn path downhill past Llyn Bochlwyd & its associated waterfall and then all the way back to where we began.
In total a very enjoyable walk of about 7 miles with a climb of around 3,300 ft. Whilst timing will vary upon your pace & how much you stop to enjoy / photograph the views, it is best to allow most of a winter’s day to complete this – say 7 hours.
Below is my map for this walk, embedded via Viewranger: