Llyn y Fan Fach

A place forever associated with the ‘Lady of the Lake’, this lonely body of water is set against the impressive backdrop of Bannau Sir Gaer.

OS grid ref SN 802217 (lake)

A four mile circular walk up a broad track from the car park to a classic glacial cirque beneath the westernmost of the high peaks of the Black Mountain.


  • Old Red Sandstone (Devonian); Brownstones Formation, Plateau Beds Formation
  • Glacial cirque & lake, glacial moraine


  • OS Landranger 160, Explorer map OL12
  • Geological — BGS 1:50,000 sheet: 230 ‘Llandovery’


  • Geotrail


  • Interpretive panel at car park
  • Free car parking at SN 797238
  • Entry: free


  • Open country; continuous climb of nearly 250m / 800ft up a vehicular access track; mountain environment — take care!

Transport links

  • By road — minor road from Llanddeusant
  • By train — nearest station at Llandovery — see Traveline Cymru
  • By bus — see Traveline Cymru; nearest service is postbus 291 to Myddfai

Other attractions nearby