Diving Into the Unknown

I used to dive but never went cave diving and not without good reason. As this documentary shows, its an extremely dangerous sport. You have to be a certain type of very calm person with nerves of steel and certain physical attributes, to pull it off. That said, as the team admit and sadly as this story shows, you may still meet your end.

The focus of this film is the story not the technicalities of diving. That said, when you see how deep these people go and the cave systems they navigate you can but be impressed by their courage and determination. Many of us would find the extreme depths, length of dive and the sense of claustrophobia, overwhelming.

In short, if you like diving this is really pretty addictive viewing. It has a simple style but really this is all that's needed. The story tells itself and shows not just how pursuit of a passion shapes us as people but also how friendships bind people together.

7/10.