“Have a great time, but keep your head down!” This was the response I received from a diving friend after announcing I was planning a visit to Ambon. At least he knew where it was; my announcement to friends in Toronto drew blank stares. When I mentioned the Spice Islands, a dawn of recognition crept into their eyes. It was a place they’d vaguely heard of but had no idea whatsoever as to their location.

The Maori warrior cautiously moved towards us. His face was painted and body adorned in traditional combatant attire. He yelled words I did not understand and pounded the ground with his spear-like weapon to challenge us. More warriors appeared out of the darkness behind him, each taking defensive positions with wide eyes and tongues out to intimidate. Like the other visitors around me, I froze with excitement, waiting for their next move.

Most of the articles one can find about rebreathers deal with potential problems and limits of these wonderful pieces of kit. They give extensive information about oxygen sensors, scrubber duration, electronics and any of the risks associated with this kind of equipment. Becoming proficient with the emergency procedures is a very important component of training and experience.

In the past we’ve focused on teaching you about underwater still photography, including (amongst other topics) equipment, locations and techniques. In the next few issues, we’re going to be diversifying a little, with a series of articles about underwater video.