Skip to main content
About us
Contact
Write for us
Advertising
Content and ad combos
Guest posts
Subscriptions
United States
Canada
United Kingdom
Europe
Asia-Pacific
Other regions
X-Ray Mag
Magazine
News
Main sections
Travel
Destinations
Australia & New Zealand
Continental Asia
Japan
China
South Korea
Southeast Asia
Indonesia
Bali
Komodo
Lembeh
Maluku
Raja Ampat
Sulawesi
Malaysia
Papua New Guinea
Philippines
Thailand
Timor-Leste
South Pacific & Oceania
Fiji
French Polynesia
Micronesia
Chuuk (Truk)
Marshall Islands
Yap
Palau
Samoa
Solomon Islands
Tonga
Vanuatu
Indian Ocean
Madagascar
Maldives
Seychelles
Red Sea
Africa
Egypt
Malawi
Mozambique
Namibia
South Africa
Sudan
Tanzania
Mediterranean & Adriatic
Croatia
Cyprus
France
Greece
Italy
Malta & Gozo
Portugal
Spain
Turkey
Europe
Northern Europe
Denmark
England
Finland
Iceland
Ireland
Norway
Scotland
Sweden
Eastern Europe
Albania
Bosnia-Hercegovina
Croatia
Czech Republic
Hungary
Poland
Russia
Northwest Russia
Russian Far East
Siberia
Western Europe
Austria
France
Germany
Switzerland
Southern Europe
Cyprus
Greece
Italy
Malta & Gozo
Portugal
Spain
Atlantic
Azores
Canary Islands
Falkland Islands
St Helena
North America
Canada
Great Lakes
United States
East Coast
West coast
Alaska
Hawaii
US Virgin Islands
Guam
Mexico
Caribbean & Central America
Bahamas
Belize
Cayman Islands
Bonaire
Cuba
Dominican Republic
Mexico
Columbia
Grenada
Costa Rica
Saba
Honduras
Turks & Caicos
US Virgin Islands
Nicaragua
South America
Argentina
Brazil
Ecuador
Polar Regions
Artic
Antarctica
Promotions
My Favorite Dive
Training & Tech
Rebreathers
Sidemount
Deep Wrecks
Cave Diving & Mines
Ice Diving
Diver Health & Safety
Divers Alert Network - DAN
Safety Culture
Adaptive Diving
Equipment
BCDs, Wings & Sidemounts
Dive Computers
Dive Watches
Drysuits & Undergarments
Hoods, Gloves & Boots
Lamps & Torches
Masks, Fins & Snorkels
Regulators
Wetsuits & Rashguards
Photo & Video
Equipment
Cameras & Optics
Editing & Post-processing
Housings
Lighting
Useful Tools
Tutorials
Techniques & Tips
Mike Bartick
Rico Besserdich
Composition
Editing & Post-processing
News & Announcements
Contributors' Picks
Ecology
Ocean Mysteries series by Ila France Porcher
Sharks, Rays and Nudibranch stories by Andy Murch
Sentience
Conservation
Coral Reefs
Dolphins
Fish
Jellyfish
Mantas & Stingrays
Nudibranchs
Octopus & Squid
Sea Turtles
Seals & Sea Lions
Sharks
Whales
Wrecks
Vic Verlinden
Ancient Wrecks
Artificial Reefs
Marine Archaeology
Older Warships
Steamships & Cargo
Tall & Wooden Ships
WWI Wrecks
WWII Wrecks
Lifestyle
Books & Media
Works by our contributors
Profiles & Interviews
In Memoriam
Portfolios & Ocean Arts
Apres Dive & Apparel
Editorials
Contributors
Pundits
Mike Ange
Gareth Lock
Michael Menduno
Mark Powell
Simon Pridmore
Regular writers
Scott Bennett
Andrey Bizyukin
Larry Cohen & Olga Torrey
Pierre Constant
Brent Durand
Jennifer Idol
Scott Johnson
Steve Jones
Kate Jonker
Kelly LaClaire & Kate Holt
Matthew Meier
Brandi Mueller
Svetlana Murashkina
Barb Roy
Don Silcock
Claudia Weber-Gebert
Lawson Wood
Columnists
Scott Bennett
Rico Besserdich
Rosemary 'Roz' E. Lunn
Ila France Porcher
⚲ Search
Mark Powell
Do What You Teach and Teach What You Do
01 Sep, 2022
Training
The Evolution of Dive Planning
12 Jun, 2018
Theory
Permanent Change: When Have We Learnt?
03 Jan, 2018
Training
,
Theory
Achieving Our Teaching Objectives
26 Sep, 2017
Training
One for all or all for one?
23 Apr, 2013
Training
,
Technical Diving
But I want one... Switching to rebreathers after diving open circuit scuba
07 Nov, 2012
Rebreathers
Skills for Technical Diving
23 Feb, 2012
Technical Diving
Technical Diving Equipment
13 Oct, 2011
Technical Diving
Team Diving
13 Oct, 2011
Training
Lessons from Technical Diving
13 Oct, 2011
Technical Diving
