Fan y Big
About Fan y Big
Fan y Big is famous for the 'diving board', a flat rock slab that juts out over the escarpment and is one of the most photographed spots in the Brecon Beacons. The views north over the Usk Valley are exceptional.
Height & Prominence of Fan y Big
Fan y Big stands at 719 metres (2359 feet) above sea level, according to Ordnance Survey data. Its topographic prominence is 114 metres, meaning it rises at least that far above the col connecting it to the nearest higher peak. Fan y Big is part of the Brecon Beacons. The OS grid reference is SO 036206, which you can use to locate the summit on any Ordnance Survey Explorer or Landranger map.
Fan y Big carries the classifications of Hewitt, Nuttall.
Location & Nearest Towns
Fan y Big is located in Wales, Powys, within Brecon Beacons National Park. It sits in the Brecon Beacons area. The nearest towns and villages include Brecon, Llangorse Lake, Pen y Fan, and others, where you can find accommodation, pubs, and supplies before or after your walk.
For official access information and any seasonal restrictions, check the Brecon Beacons National Park authority.
Interesting Facts
- Famous for the 'diving board' rock that juts over the escarpment edge
- One of the most photographed spots in the Brecon Beacons
- Part of the Brecon Beacons ridge walk from Pen y Fan east
- The northern escarpment drops sharply to the Usk Valley
- Part of the long Beacons Way footpath
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.
On the Mountain: Walking Fan y Big
Fan y Big is a moderate walk that rewards careful planning. The summit sits at 719m, where conditions can feel distinctly different from the valley — wind speeds are typically 30–50% stronger above 800m, and the temperature drops roughly 1°C for every 100m of ascent. In cloud, the cairn at the top can be hard to spot, so keep a map and compass to hand even on well-marked paths.
After your walk, the nearest village — Brecon — is a good place for a pint and a debrief. For detailed route descriptions and trip reports from other walkers, Walkhighlands is an excellent resource.
Nearby Dining
- Brecon town centre cafes
- The White Swan Inn
Frequently Asked Questions
Is Fan y Big one of the best mountains to climb in the UK?
Yes, Fan y Big is considered one of the best mountains to climb in the UK thanks to its scenic routes, 719m elevation, and moderate difficulty level.
What difficulty level is Fan y Big?
Fan y Big has a difficulty rating of Moderate. Various routes are available for different experience levels.
When is the best time to climb Fan y Big?
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 Fan y Big?
Fan y Big stands at 719m (2359ft) in Wales, Powys. Classified as a Hewitt and Nuttall, it is a rewarding destination for hikers, climbers, and photographers.
Browse our UK mountains directory to discover more peaks, or see all mountains A–Z.
Nearby Peaks to Explore
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