So it's one of the most written about wrecks in the diving world (Shadow Divers / The Last Dive etc.) and its discover and exploration are woven into the very fabric of diver training today, once you past a basic open water certification... I was really pleased, therefore, to find the entire original documentary about Chatterton et al available on youtube: Worth a watch for anyone who hasn't seen it and who is interested in wreck diving (even if it is on the wrong side of the pond). The documentary is refreshingly free from melodrama American "the most extreme diving in the world" soundbites and is basically an interesting documentary on the exploration of the wreck and its history. It's sobering to be reminded of the fatalities involved in the early days of deep / mixed gas sports diving and a reminder of the risks involved and why training has evolved in the way it has... [EDIT] The documentary is split into 8 parts but the play list should just roll on each time.