Pen y Cadair
About Pen y Cadair
Pen y Cadair is the true summit of Cadair Idris. The mountain is steeped in Welsh mythology — legend says anyone who sleeps on its summit will wake either a poet or a madman.
Interesting Facts
- Legend says sleeping on the summit makes you a poet or a madman
- Named after the giant Idris Gawr who used it as a chair
- Contains a glacial lake, Llyn y Gadair, in a spectacular corrie
- One of the finest ridge walks in southern Snowdonia
- The mountain featured heavily in early Welsh Romantic art
Safety Tips
Always check forecasts before setting out. Summit conditions differ dramatically from valley level.
Carry map, compass/GPS, water, food, first aid, whistle, torch, and waterproofs.
Tell someone your route and return time. Stick to marked paths. Be ready to turn back.
Ask for Police, then Mountain Rescue. Know your grid reference.
Nearby Dining
- Cadair Idris pub, Dolgellau
- T H Roberts, Dolgellau
Frequently Asked Questions
Is Pen y Cadair one of the best mountains to climb in the UK?
Yes, Pen y Cadair is considered one of the best mountains to climb in the UK thanks to its scenic routes, 893m elevation, and moderate difficulty level.
What difficulty level is Pen y Cadair?
Pen y Cadair has a difficulty rating of Moderate. Various routes are available for different experience levels.
When is the best time to climb Pen y Cadair?
The best season is Spring to Autumn. Summit temperatures are typically 5–10°C colder than the valley, and conditions can change rapidly.
Why Visit Pen y Cadair?
Pen y Cadair stands at 893m (2930ft) in Wales, Gwynedd. Classified as a Hewitt and Nuttall and Marilyn, it is a rewarding destination for hikers, climbers, and photographers.
Browse our complete UK mountains directory to discover more peaks.
Nearby Peaks to Explore
Looking beyond Pen y Cadair? These peaks are close by and worth exploring.
