Richard Wylde and Fred Devos of Zero Gravity  - over the last decade or so - have been building a set of maps in the Yucatan cave area. So far the corpus of work covers 4 finished maps and an ongoing one in Actun Chen. Details are given below:


Chiken Ha


Actun Koh

Balam Ha

Actun Chen - ongoing in 2017


and here is a  "Anecdotes of a slightly mad cave diver" PowerPoint presentation given in 2015 

Wylde Cave Diving reduced