Tech Zone

20.08.10 How using helium can reduce narcosis

Technical diving instructor Mark Powell looks at the use of helium to reduce narcosis

30.06.10 Malta's tech wrecks - part two

Footage of HMS Southwold resting in 68m off the coast of Malta had Gareth Lock hooked from the word go, and he set himself the target of diving this iconic wreck

30.06.10 Malta's tech wrecks - part one

Footage of HMS Southwold resting in 68m off the coast of Malta had Gareth Lock hooked from the word go, and he set himself the target of diving this iconic wreck

29.06.10 Side-mount diving

The latest hot development in recreational and technical diving is the side-mount system. David Jones tried it out - and he's become a true believer. Photographs by David Jones

21.05.10 Extend your diving

Technical Diving Instructor Mark Powell looks at how technical diving can extend your diving experience

13.04.10 Using multiple cylinders

Many technical divers progress to using stage cylinders, but when and how should they be used, and what are the potential dangers

26.03.10 Rebreathers: are they right for you?

Mark Powell looks at the advantages of switching from traditional open circuit scuba to closed circuit rebreathers

05.01.10 Buoyancy control

Mark Powell looks at the importance of buoyancy control and the ways in which itcan make improvements to your diving

05.01.10 Trim

Mark Powell looks at improving your position in the water

05.01.10 Why has tech diving become so popular?

Mark Powell looks at why technical diving has gained such a following