Author

Richard Devanney

Richard Devanney

Multi-agency Instructor

Richard Devanney is a PADI, SSI, BSAC and SDI instructor who teaches technical diving through TDI, SSI XR and PADI TecRec. He currently lives in Reykjavik, Iceland, and manages Dive Silfra, owned by parent company Arctic Adventures. He runs a Facebook technical diving page called Iceland Technical Diving. (Profile photo by Byron Conroy)

Stories by Richard
Many divers simply call the gas in their tank “oxygen” or “air” without really knowing what it’s made of. What’s the difference between scuba diving gas mixes?
Training In the Water

The Difference Between Scuba Diving Gas Mixes

Many divers simply call the gas in their tank “oxygen” or “air” without really knowing what it’s made of. What’s the difference between scuba diving gas mixes?

by
John Scott Haldane
History In the Water

Pioneers of Diving: John Scott Haldane

Scuba diving as we know it resulted from the efforts of many pioneering individuals. In this series of articles, we’ll highlight a number of their contributions.

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dive spool
Training

How to Set Up and Store a Dive Spool

The dive spool is one of the diver’s most useful pieces of equipment, but it’s often set up and stored improperly. What’s the best way to take care of your dive spool?

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Dive Locations

Best Scuba Diving in Iceland

Iceland is home to stunning landscapes, glaciers, mountains and lakes — and some of the world’s best cold-water diving. Here are our picks for the best scuba diving in Iceland.

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New stuff

Macro Diving in Sydney Harbor

Although it’s most famous for the iconic Opera House, the macro diving in Sydney Harbor holds at least as much appeal underwater. 
by Guest Author

Cave Diving in Kilsby’s Sinkhole

Until 2016, cave diving in Kilsby’s Sinkhole in South Australia was strictly off limits to all but a few. The rules have since changed, but controversy still surrounds this remote dive site.
by Guest Author

Scuba Diving in Milne Bay

Scuba diving in Milne Bay, Papua New Guinea takes some advanced planning, but the rewards are well worth it.
by Guest Author

What is the PADI Seal Team Program?

In the second of our series on dive programs for children, we’ll cover everything you need to know about the PADI Seal Team program.
by Christine Brinkley