No.1 (TQ500728) - open denehole (shaft 9 metres)
Up to 50 more filled deneholes exist in this area
References
“Deneholes”, Chelsea Speleological Society page 55
"Deneholes Part 2", Chelsea Speleological Society, page 10
"Kent & East Sussex Underground", Kent Underground Research Group
Records of the London Speleological Group Vol 1, page 22-24 + 47-50
References
Records of the London Speleological Group Vol 2, page 52-53