This account represents a summary of the early history of the discovery in 1982 and, the subsequent exploration of Hallowe’en Rift up to 1991. The data has been collected from available online resources including the Mendip Cave Registry & Archive (MCRA) and Bristol Exploration Club (BEC) websites. It is not claimed to be a full and definitive account of the early years as there is more information contained in personal logs not accessed. However, it does cover the significant advances made during the early exploration of the cave.

Note: Several of the following accounts have been edited for grammatical and typographic errors.