Somerset Sump Index
Published by the Cave Diving Group in 2008, the book comprises 196 pages of site descriptions and dive reports in this classic British caving area.
Best used in conjunction with the local caving guide, the Sump Index has entries for fifty sites in the area including classics like the Cheddar River Cave, Swildons' Hole, and Wookey Hole. There are also eight surveys.
The format is that of a sump description for the major sites, as well as a historical synopsis of the original exploration using the dive reports.
Edited by Mike 'Trebor' McDonald, and Dr Duncan Price.