Women Who Tech Dive Nikoo Cheheltani
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Technical diving is about the journey, exploring the unseen world, gaining valuable experience, and always learning something new.
Cozumel Crystal Tranquility
Cozumel’s clear waters and vibrant reefs make it a top spot for drift dives, wrecks, and freediving with expert SDI guides.
Earth Day Beach & Underwater Cleanup
SDI’s Earth Day cleanup at Juno Beach Pier removed 75+ pounds of debris and raised awareness for ocean conservation.
Nitrox Demystified with Capt Tom
Nitrox is a safer breathing mix for sport divers that allows longer bottom time and shorter surface intervals, despite a few limitations.
TRIM
Trim is an elegant and efficient posture that boosts control, protects marine life, reduces air consumption, and starts in your first course.
Cocoons Aren’t Just for Butterflies
The article reveals how night diving uncovers a different reef, focusing on parrotfish’s protective mucus cocoon for survival.
The Ocean Remembers Me
In "The Ocean Remembers Me", Chris Bustad captures the diver’s timeless bond with the sea—an embrace of healing and memory.
Fill ‘er Up – The SDI Air Fill Station Technician course
The SDI Air Fill Station Technician certification makes you a more informed, more capable leader in the industry. Stay sharp, stay certified, lead with confidence and train skilled technicians to help create a safer workplace.
Cutting Tools
The right cutting tool isn’t optional—it’s your lifeline when entanglement strikes in real-world dive conditions.
Between Two Corals Where There’s a “Will,” There’s a Way
Episode 4 dives into the wild world of underwater filmmaking with William Drumm and Will Limpert, full of laughs, gear tips, and ocean chaos.
Considering the SDI Divemaster Program
Physical ability, technical knowledge, emotional resilience, and relational skills are the foundation for dive professionals' success.
What speed should you turn on your oxygen cylinder?
Open oxygen cylinders slowly—focus on slow pressurization, not fast opening—to prevent fires, especially with old or contaminated valves.