Understanding Dive Equipment Regulations

Most divers know their scuba cylinders need a visual inspection every year and a hydrostatic test every five years (referred to as a requalification or a hydro). The actual regulations for cylinders and other dive equipment, however, are less clear.

Regulations help prevent cylinder incidents and protect you and others from harm.

Advanced Underwater Navigation

Most divers’ love of the sport stems from a drive to explore a foreign environment. With exploration must come the ability to navigate. Nowhere else on Earth can one become more lost than in a liquid, while simultaneously requiring constant individual concentration on safety techniques, breathing gas, buoyancy, horizontal trim, depth, and time.

Successful navigation depends on one’s ability to master the basic fundamental skills of diving.

Clarify Hand Signals Before Diving

Divers spend much of their time underwater with a select group of buddies — the ones we trust to get us through the dive and surface with fresh experiences and stories to tell. Newly certified divers have had limited interactions underwater, having dived only with classmates, instructors, and assistant instructors during their classes.

Reviewing hand signals predive increases group safety and decreases mental loading.

Misool Foundation

The spectacular ecosystem of Indonesia’s Raja Ampat offers ample opportunities for fish portraits and macro shots with a 100mm lens, but the broad expanses of pristine hard corals punctuated with colorful soft corals and sea fans made it difficult for me to forego using my wide-angle lens during a recent liveaboard trip.

A drone’s view of Batbitim Island and the surrounding waters of Misool

Diving with a PFO

To clear up any confusion divers may have about patent foramen ovale (PFO), I will share how I explain the condition to patients. 

A surgical solution is a PFO closure, as Dr. Doug Ebersole is performing here.

YAP

Shallow coral heads are on both sides of the M’il Channel opening as we slow down to locate our mooring ball. The incoming tide brings clean, blue water into the lagoon, creating opportunities for encounters with one of Yap’s main attractions just a few feet below the surface.

Manta rays come to be cleaned of parasites by small wrasses.

Don’t Let Complacency Kill You

During a recent dive trip to Chuuk, I really wanted to see the San Francisco Maru wreck. I never imagined, however, that I would have a near-death experience immediately upon entering the water. 

Chuuk Lagoon is often called a wreck divers paradise.

Malpelo

Most fans of big animal action are familiar with the legendary Galápagos, Cocos, and Socorro dive destinations. All are remote and remarkable. Far fewer people know of — let alone have dived — another open-ocean oasis in the eastern tropical Pacific region: Isla Malpelo. 

A silky shark swims through a huge school of bigeye jacks.

For Want of a Nail, the Battle Was Lost

It was 2004, the dawn of digital photography, and I was conflicted about whether to shoot film or digital. I had brought housings for both cameras with me to Thailand. Carrying two housings on a dive was ponderous, but I could manage it if I didn’t take two sets of strobes. My solution was to rig both housings with wet connectors called EO pigtails, which went into the regular sync socket, allowing me to connect and disconnect my strobes underwater.

Frink checks out the camera table on a liveaboard

Ripoff Reef

When I dive in an unfamiliar area, I tell the dive operator I want to start at their best spot — the site with everything. If I get bored with that, maybe I’ll try other sites. If you came to my home turf on the Kona Coast of Hawaiʻi Island and asked me for the site that has everything, I would send you to Ripoff Reef.

Hawaiian spinner dolphins often use the Honōkohau boat channel as a resting and socializing area.