Author Archives: Daren Marshall

Dive Rite O2ptima 2014 Review

by Daren Marshall Dive Rite O2ptima 2014 Review The Dive Rite O2ptima CCR has been around for a decade and is very well established. As you would expect from a progressive company of actual divers that constantly tweak products according to their own real diving experiences & customer feedback, the O2ptima has had its fair […]

Dive Rite Nomad LT Extreme Reviewed

By Daren Marshall Dive Rite were the guys first to come up with the commercial sidemount system and it’s CEO Lamar Hires has a strong history and influence of the development of sidemount as a concept. This year saw the introduction of a new rig to the Dive Rite stable, the Dive Rite nomad lt extreme […]

Hollis Explorer review – A Real World take

A real world take – Hollis Explorer Review by Daren Marshall. In the late 1990’s I taught the Draeger Dolphin semi closed rebreather. So I was very excited to be able to finally take the TDI Hollis Explorer Diver Course and see how a semi closed hybrid system might bridge the gap between that old technology […]

Which Rebreather ?

WHICH REBREATHER?… Which Rebreather is a question that I’m asked at least once a week from potential new rebreather students looking to take the step into the silent world. A question that I’ve asked myself numerous times over the years and led to the serial owning of enough different units to make a bank manager […]