Historic Dive Helmets

Traditional copper and brass deep-sea dive helmets often attract the modern dive community’s attention. International interest recently spiked when a helmet believed to be from the dawn of American professional diving sold for a record-setting $54,000 in Wichita, Kansas.

The Parade of Nations helmet display

Curated Corals

This past summer the Florida Keys experienced the effects of a marine heatwave event that lasted longer and was more intense than anything in recent recorded history. By early June 2023 the National Oceanic and Atmospheric Administration (NOAA) Coral Reef Watch (CRW) issued bleaching warnings for some areas in the Florida Keys and other locations in the Caribbean.

coral bleaching

Pieter-Jan van Ooij

Pieter-Jan van Ooij, MD, PhD, is the head of the Department of Research, Innovation, and Education at the Royal Netherlands Navy’s Diving Medical Centre (DMC).

Subjects participate in a study about pulmonary oxygen toxicity after Table 6 treatments in Amsterdam.

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.

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

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.

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.
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