A spring rising in the cave is recorded in the 13th century "Annals of Waverley Abbey" as "Ludewell"; other spellings through history include "Ludwell" and "Luddwelle".
A monk named Symon is credited with identifying the spring as a suitable water supply for Waverley Abbey in 1218, after the original source had dried up.
[3] According to the information panel erected at the cave by Waverley Borough Council the name Ludwell can be traced back to the Celtic language, and means "bubbling spring".
[4] John Aubrey visited the area in 1673 and was informed that Ludwell was named after Lud, King of the South Saxons, who went there to bathe his wounds after a battle.
A story originating with the Norman-Welsh writer of historicised legends Geoffrey of Monmouth has Ludd, Lud or Llud as the ruler of Celtic Britain.
The earliest versions of the legend, such as that recorded by John Aubrey in 1673 in his Natural History and Antiquities of Surrey, make no mention of a witch and it is likely that the story was originally associated with fairies.
As recorded in 1937 the legend is that one day the Devil, in disguise, had visited Mother Ludlam and asked to borrow the cauldron she used for mixing her potions.
The semicircular paling is gone; the basins to catch the never-ceasing little stream are gone; the iron cups, fastened by chains, for people to drink out of, are gone; the pavement all broken to pieces; the seats, for people to sit on, on both sides of the cave, torn up, and gone; the stream that ran down a clean paved channel, now making a dirty gutter; and the ground opposite, which was a grove, chiefly of laurels, intersected by closely-mowed grass walks, now become a poor ragged-looking alder-coppice.
[13] Opposite the cave entrance is the Moor Park Nature Reserve of the Surrey Wildlife Trust, which is an SSSI consisting mainly of alder carr.