Blue Dragons
Equipment: Sony a7RV camera, Sony 28-60mm lens at 49mm, a Nauticam WACP-C wide-angle conversion port, Nauticam housing, Retra Pro X strobesSettings: 1/250 sec, f/22, ISO 400Location: Sea of Cortez, Baja California […]
Alert Diver Issue : Q1 2025
Exiting a Plane During an Emergency
Most flights are uneventful, with the worst experiences being an occupied lavatory or unexpected turbulence. Emergencies can happen, however, and aircraft passengers need to be prepared to react quickly and efficiently. In an emergency, knowing the proper evacuation procedures for your flight can mean the difference between safely concluding your trip or reaching a different final destination.
Équipement de plongée fait maison
The “Historic Dive Helmets” article from the Second Quarter 2024 issue of Alert Diver triggered memories of my father, Burton Stewart, and his best friend Leno Prestini. In 1935 they crafted their […]
DAN Podcast Debuts
DAN’S NEW OFFICIAL PODCAST, The DANcast, delivers safety insights through engaging conversations from across the dive industry. This series blends practical knowledge with personal stories to inform and inspire the dive community.
Used Rebreather Scrubber Disposal
Sorb, or scrubber, plays a critical role in rebreather diving, as it is responsible for removing carbon dioxide (CO2) from the diver’s breathing gas. Small granules or pellets absorb exhaled […]
DAN Research Grants
DAN has introduced the Research Grant Program, designed to push the boundaries of dive safety through innovative research. The program will support studies that develop robust theories and empirical evidence that contribute to safer dive experiences.
Réintroduction de la vie sauvage dans les récifs coralliens
Rewilding is a popular term in conservation circles, but what does it mean, and is it appropriate for coral reefs? Should divers be clamoring for reef rewilding? Does it represent […]
Linden Wolbert
Tout enfant prédisposé à l'amour de la nature trouvera probablement son chemin vers des environnements proches de la nature, ce qui s'est produit tôt et de manière fortuite pour Linden Wolbert. Lorsqu'elle a eu un an, sa famille a déménagé dans une vieille ferme en Pennsylvanie, non loin de l'endroit où George Washington a traversé la rivière Delaware pendant la guerre d'indépendance.
Photographie grand-angle en mise au point rapprochée
Most of our experiences in digital photography are somewhere between one end of a spectrum and the other. Underwater photographers often make an either/or distinction when describing how we shoot, […]
Les Philippines : un phare d’espoir pour la haute mer
La haute mer incarne depuis longtemps une frontière d’aventure et de liberté — un espace où les hommes prenaient de grands risques, avec l’espoir d’y trouver des trésors insoupçonnés, au gré d’un océan imprévisible.
