Pitlamp
Well-known member
I was asked recently if I knew what is currently the longest single entrance underwater cave system currently explored. I couldn't answer this myself, hence asking on here. The longest suggested was the Ixtlan System at Quintana Roo (Mexico) at 15.43 km.
Does anyone know of a longer one?
(It's probably best to stick with completely water filled caves with only one entrance, rather than being side tracked by other categories such as "total length of sumps" or whatever.)
Thanks, if anyone can help.
Does anyone know of a longer one?
(It's probably best to stick with completely water filled caves with only one entrance, rather than being side tracked by other categories such as "total length of sumps" or whatever.)
Thanks, if anyone can help.