Anatomy of a Commercial Mixed-Gas Dive

The commercial diving industry adopted mixed-gas technology in the 1960s to overcome the limitations of deep air diving. The industry has an exemplary safety record.

A dry welding chamber is lowered to a repair site for installation.

Seeing the Reef in a New Light

Fluorescence night diving enables divers to observe marine life in glowing colors often invisible to the naked eye. Read more about this night diving technique and how fluorescence works.

Moray eel emits green light

Diving in Currents

Currents can by physically demanding for divers, and they can accelerate air usage. But, diving in currents can be a lot of fun! Read more about how to successfully dive in currents.

Diver swims in a fast current, evidenced by the bending sponges

Diving in Remote Destinations

Whether your plans involve recreational or technical diving, hiring dive operators in remote locations requires several considerations — and there are additional safety factors to consider when going to these remote destinations.

A diver dives around rocks and corals

Learning to Rebreathe

Rebreather diving can be tricky for recreational divers especially in terms of relearning buoyancy control. Rebreather diving also does not change the amount of gas in the system, but simply moves the volume of gas back and forth. Learn more about how one rec diver learnt rebreather diving.

A man in rebreather gear stands next to a woman, in waist-deep water

Ice Diving

Ice diving is both politically and scientifically interesting and has received international research funding in the fields of medicine, physiology, fisheries and ecology. Read more about ice fishing.

At a freezing pole, two people walk the ice toward their little camp

Caissons, Compressed-Air Work and Deep Tunneling

Do you know how underground tunnels are made? The working spaces, or caissons, are pressurized with compress air. But in the 19th century, many laborers had an unexplained illness after returning to atmospheric pressure.

An old photo of workers building tunnels and bridges

Aquarium Diving

Aquarium divers are crucial in keeping the habitats clean and the animals healthy. To be come an aquarium diver requires additional training and learning how to apply their old skills in new ways. Learn more about aquarium diving.

Aquarium diver swims next to a shark

Breathing Gases

Some divers like closed-circuit rebreathers for their ability to provide breathing gas at a set partial pressure of oxygen throughout dives.

Two green monitors read breathing gas