Diving with a Tracheostomy

A tracheostomy is a surgically created opening in the front of the neck that leads directly into the trachea to facilitate breathing by allowing air to reach the lungs.

Tracheostomy

Training 1,000 People in 1,000 Days

Dive professionals gathered in Labuan Bajo, Indonesia, in April as the 1,000th participant completed training under DAN’s One Thousand in One Thousand initiative, a multiyear effort to strengthen emergency preparedness throughout the country’s dive industry.

Richardson delivers remarks during the “Safety Talk on Marine Tourism Safety and Security” in April 2026.

Root Causes of an Unusual Encounter

Jim has been a certified PADI diver for 50 years and is a certified open water instructor and an underwater photographer specializing in shark images.

An aggregation of lemon sharks, attracted to chum, swirl around divers.

Safety Is a Standard, Not a Goal

Throughout my career, whether serving in military special operations, leading mission-driven organizations, or working alongside professionals in high-risk environments, I have often heard people say that safety is their goal.

Cliff Richardson

When the Divemaster Needs Rescuing

I took a large group of divers to Fiji. We divided into four groups for diving, each with our own divemaster.

Regular buddy checks, breathing gas checks, and practiced air-sharing skills can help prevent an out-of-air emergency and ensure divers are prepared to respond when one occurs.

Mafia Island

Southeast Asia undeniably has some of the best diving in the world. After many recent trips to Indonesia, however, I was ready to try a different dive destination.

Although not plentiful, there were enough pockets of colorful soft corals to keep me happy shooting wide-angle images.

A Timeline of Decompression Stress

Most divers think about decompression STRESS primarily in terms of depth, bottom time, ascent rates, and safety stops.

Divers can reduce unnecessary decompression stress by moving efficiently and maintaining calm, effective breathing.

Bermuda Bounty

Let me begin with a disclaimer: I am biased about Bermuda. This enchanting island is where I made my first scuba dive 56 years ago.

Hamilton Harbor, lined with iconic colorful buildings, is Bermuda’s primary port.

Drysuit Buoyancy

The question of whether a diver should rely on a drysuit for buoyancy control or treat it primarily as thermal protection while managing buoyancy with a buoyancy compensator device (BCD) remains one of coldwater diving’s more practical and seemingly never-ending debates.

Anthony Tedeschi navigates a narrow cave restriction.

Japan

Beneath the waves lapping at Tokyo’s doorstep, fish as wildly colorful as Amazonian birds glide through forests of soft corals and over bustling artificial reefs.

A diver explores an artificial reef overgrown with colorful marine life at the Gyosho dive site.