Staying Connected – A Beginner’s Guide to Lines in Cave Diving

An interesting short overview of some important tools used for overhead penetrations (caves, mines, wrecks):

https://www.tdisdi.com/tdi-diver-news/staying-connected-a-beginners-guide-to-lines-in-cave-diving/https://www.tdisdi.com/tdi-diver-news/staying-connected-a-beginners-guide-to-lines-in-cave-diving/