oups last one about inflating dry suit (ex clx450 or tls350):
3 lit 300b was never enough for me down to -180m, mainly if the profile of the cave is a little bit up and down
so nowadays
7 lit (S40) 230b, much more comfy
Ask Mario M. to tell you his story about St Sauveur 2005 -163m


May the force be with you young DrMike apprentice
Jerome