Advanced Open Water Diver (AOWD) is a recreational scuba diving certification level provided by several diver training agencies. Agencies offering this...

Open Water Diver (OWD) is an entry-level autonomous diver certification for recreational scuba diving. Although different agencies use different names...

Advanced Open Water Diver certification program. Underwater navigation is usually a core component of most, if not all, advanced recreational diver training...

and diver training organization founded in 1966 by John Cronin and Ralph Erickson. PADI courses range from entry level to advanced recreational diver certification...

certifications. The most common programs are: SSI Open Water Diver (OWD) and Advanced Open Water Diver (AOWD). There are more than 30 different specialty...

Jim Bowden is an American technical diver, known as a cave diver and as a deep diver. In 1994 he set a world record, since broken, by diving to 925 feet...

Water Diver – Entry-level autonomous diver certification for recreational scuba diving Advanced Open Water Diver – Recreational scuba diving certification...

agencies but can be categorized as: Advanced nitrox diver, a scuba diver certified as competent to dive in open water using open circuit nitrogen-based gas mixtures...

used to form a mandatory component of the Advanced Open Water Diver training course for many North American diver training agencies, which, in addition to...

American international system,[clarification needed] following the Advanced Open Water Diver qualification (AOWD). Historically the course was treated as a...

the Advanced Open Water Diver course. The course consists of five theory lessons, five swimming pool dives and at least four dives in open water on scuba...

as follows: IANTD awards their Elite Diver Recognition to a diver who completes: IANTD Advanced Open Water Diver. Three IANTD specialties: Deep, EANx...

apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing...

certification for a few main levels. The certifications Open Water Diver (OWD), Advanced Open Water Diver (AOWD) and Divemaster (DM) based on RSTC standards...

A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. Two styles of flag are in use. Internationally...

reduced risk in a situation where breathing gas supply is compromised, as the diver can make a direct ascent to the surface with an acceptably low risk of decompression...

vehicles and are experts in desert warfare. They are also trained in an advanced level of motor mechanics to field-repair any vehicular breakdown. Mountain...

Keenan (1 December 1977 – 22 July 2017) was an Irish freediving safety diver and co-owner at Dahab Freedivers. He held several Irish national freediving...

Such personnel are also known by the more formal names of combat diver, combatant diver, or combat swimmer. The word frogman first arose in the stage name...

Open water diving is underwater diving in an open water environment, where the diver has unrestricted access by way of a direct vertical ascent to the...

bell and can only be opened if the pressure inside is balanced with the ambient water pressure. The bellman tends the working diver's umbilical through the...

the diver sufficiently negatively buoyant to walk on the bottom, and the suits were not capable of the fine buoyancy control needed for mid-water swimming...

for combat divers Advanced European Scientific Diver – A diver competent to organise a scientific diving team Advanced Open Water Diver – Recreational scuba...

ambient pressure diving, the diver is directly exposed to the pressure of the surrounding water. The ambient pressure diver may dive on breath-hold (freediving)...

allow water to enter the helmet. This can only be checked when in the water. Pneumo bubbles – The diver calls for the air panel operator to open the pneumofathometer...

and it could operate at a water depth of 460 metres (1,500 ft). As a drilling rig, Byford Dolphin was equipped with advanced drilling equipment and originally...

balance of a diver occurs when the total heat exchanged between the diver and their surroundings results in a stable temperature of the diver. Ideally this...

modification and the specialized needs of the cavern diver. The prerequisite qualification is Advanced Open Water Diver or equivalent. The Introduction to Cave Diving...

John Shaw (20 July 1954 – 8 January 2005) was an Australian scuba diver, technical diver, and airline pilot for Cathay Pacific, flying the Lockheed L-1011...

ready to gain open water diving experience in the company of an experienced diver." Two Star Diver – "a diver who has gained some open water diving experience...