About the author:
Cedric Verdier is a PADI Course Director and a Trimix Open Circuit or Rebreather Instructor Trainer for IANTD, PSAI, ANDI, DSAT and TDI. He spends most of his time teaching cave and mixed-gas rebreather courses at the diver and instructor level. He has written 9 books and more than 150 articles about diving. Amongst other dive "Firsts" he pushed the limits of the Sra Keow cave in Thailand and explored the japanese Battleship HIJMS Yamashiro in the Philippines.