Llyn y Fan Fach
Photo via Wikimedia Commons — licence & author.
Glacial lake of the Lady legend
This is a quick reference, not a full walked guide. The facts below — location, parking, grid reference and access — are maintained from our dataset, but we haven't published our own first-hand write-up of Llyn y Fan Fach yet. Know it well? Help us get it right.
A dark glacial lake cupped beneath the sweeping escarpment of the Black Mountain — remote, silent, and the setting for the ancient legend of the Lady of the Lake and the Physicians of Myddfai. This is Wales at its wildest. A steady track leads up from the road-end near Llanddeusant to the shore, and stronger walkers can climb on to the Fan Brycheiniog ridge for one of the great mountain walks of South Wales. Free and open; come prepared for real hill country.
Getting there
Llyn y Fan Fach is in Black Mountain, Bannau Brycheiniog, Bannau Brycheiniog (Brecon Beacons). It's roughly 25 min (8.1 miles) from Llandovery , and within reach of Llandeilo (32 min) and Brecon (44 min).
The nearest parking: Rough car park at the road-end below the lake (near the trout farm). Grid reference SN 806 236 — works on any OS map and doesn't need a phone signal.
Good to know
A steady track leads up from the road-end near Llanddeusant; extend onto the Fan Brycheiniog ridge for one of the great walks of South Wales.
On the map
View Llyn y Fan Fach on OpenStreetMap ↗, or open it in the Explore Wales trip planner to add it to a day out with drive times and offline maps.
Staying over?
Llandovery makes a relaxed base for exploring the area — worth staying over to catch an early start or a golden-hour finish.
Browse places to stay near Llandovery ↗ opens Booking.com — needs signalNearby places
Make Llyn y Fan Fach part of a day out
Add it to a trip in the free Explore Wales planner — chained drive times, weather, campsite suggestions, and offline maps for when the signal drops.