Yasuaki Kagii

Yasuaki Kagii

Born in Hyogo Prefecture, Japan.
Underwater photographer and SSI Dive Control Specialist.
He honed his underwater photography skills while working as a dive guide in Australia, Izu, and the Maldives.
He has photographed a wide range of subjects from plankton to whales, and has been documenting the seas of Iwate since the March 11, 2011 disaster.
He has appeared in numerous media programs, including “Jounetsu Tairiku”, “Crazy Journey” and “Shiten・Ronten”, and has published numerous photo books.
Awards include the 2003 Newcomer’s Award from the Photographic Society of Japan, and the 2013 and 2015 Nikkei National Geographic Excellence Awards.

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Scuba Declassified
Decoding Pressure and Density: Air Consumption and Depth Explained

Have you ever thought about how pressure and density impact our lives? From morning to night, they play a significant role. Interestingly, in our daily routines, we rarely consider density. But, Scuba Diving will change that! This article explores the relationship of pressure and density of a gas such as air, making it easy for […]
Scuba Monsters

2023.11.01

Scuba Declassified
Scuba Declassified
Optical Illusions of the Deep: Unveiling the Secrets of Underwater Vision

Have you ever noticed that things look bigger when you see them underwater? Imagine you are at a cool café. When you’re given a glass of water with a straw, you might observe that the part of the straw submerged in water looks larger than the part above the water. Another example is when you’re […]
Scuba Monsters

2023.10.17

Scuba Declassified
Scuba Declassified
Avoid Air-Saving Gimmicks – Say Goodbye to Skip Breathing!

Hey, fellow divers! We all want to make the most of our time underwater, right? Picture this: You’re diving with your team, and oops, you start feeling a little guilty because your air supply is running low compared to the others. It happens! We will talk about the smart ways to manage your air in […]
Scuba Monsters

2023.06.30

Scuba Declassified
Scuba Declassified
Unveiling the Science of Pressure and Volume: Essential Knowledge for Divers

When it comes to scuba diving, grasping the concept of neutral buoyancy is crucial. Yet, achieving neutral buoyancy is not a one-time accomplishment. It requires continuous adjustments to the air volume inside the buoyancy compensator (BC) based on the depth. Why is it necessary to fine-tune the air volume within the BC as per the […]
Scuba Monsters

2023.06.26

Scuba Declassified
Scuba Declassified
Dive Deeper into the Secrets of Oxygen: The Life Force of Our Oceans

Isn’t it astonishing that most of the oxygen we rely on for our survival originates from the vast expanse of the ocean? As Scuba divers, we understand and appreciate the value of oxygen like no one else. Every time I go diving, I remember how grateful I am to be able to breathe oxygen on […]
Scuba Monsters

2023.06.17

Scuba Declassified
Scuba Declassified
Dive into the Abyss: Unlocking the Vital Connection Between Depth and Pressure in Scuba Exploration

Remember those carefree days playing in the pool? Have you ever tried diving to the bottom of the pool, hoping to touch the floor only to be deterred by the excruciating pain in your ears? Some of you who have already experienced scuba diving may have encountered ear pain during your dives. The changing pressure […]
Scuba Monsters

2023.06.15

Scuba Declassified

Yasuaki Kagii

News

Decoding Pressure and Density: Air Consumption and Depth Explained

Optical Illusions of the Deep: Unveiling the Secrets of Underwater Vision

Avoid Air-Saving Gimmicks – Say Goodbye to Skip Breathing!

Unveiling the Science of Pressure and Volume: Essential Knowledge for Divers

Dive Deeper into the Secrets of Oxygen: The Life Force of Our Oceans

Dive into the Abyss: Unlocking the Vital Connection Between Depth and Pressure in Scuba Exploration