Hemlon
Contributor
re wearing lycra under wetsuit- there is a theory that says you lose heat that way. wet suits are meant to form a seal with the skin and prevent flow of water which has not heated to skin temp. diveskins interfer with that and allow cold water in.
ps cenotes are much colder than ocean. you will want your warmest suit there.
I've never heard of this but I am always open to learning new things. Can you provide the source of your info?