Ffynnon Fair can be found at the foot of Mynnydd Mawr, but is difficult and apparently dangerous to reach. An apparition is said to give instructions - you are to go down the path to the well, get the water, go down to the chapel, walk round it, at which point your wish would be granted.
NB We do not advise drinking from any of these sources.
The steepest cliffs in the Llŷn Peninsula are at Y Parwyd, the scene of a local ghost story. In 1794, a newly married couple moved into a cottage nearby. Within a few years they were disturbed by a phantom, but when they read a verse from the Bible, the phantom would retreat towards Y Parwyd and hover over the cliff edge before disappearing. However, the couple had finally had enough and moved to Bodferin.