Author

Marcus Knight

Marcus Knight

Marcus Knight (aka “The Scuba Monkey”) first dived during the ‘90s and was bitten by the scuba bug. During the years that followed, Marcus became absorbed in diving and, today, is a Master Instructor for both PADI and SSI.

With over a decade as a professional diver, Marcus has lived and taught
scuba around the world, including Australia, Asia, the Mediterranean Sea and the wreck heaven of Scapa Flow in the Orkney Islands. Check out his website here.

Stories by Marcus
Ear Barotrauma
Training Health In the Water

Training Fundamentals: Ear Barotrauma

The most common scuba diving-related injury is ear barotrauma. Why does it happen, and how can you avoid it?

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Cylinder Valve
Training

Training Fundamentals: Checking Your Cylinder Valve

It’s surprisingly common for divers to enter the water with a tank valve in the incorrect position. Make sure to check your tank valve before every dive.

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Commercial Diving
Training In the Water

Introduction to Commercial Diving

The thought of commercial diving may appeal to many recreational divers stuck in offices each day. What is commercial diving, and how different is it from recreational diving?

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mistakes new divers make
Training In the Water

Top Six Mistakes New Divers Make

As a newly qualified diver, you’re no doubt excited to start exploring underwater. But there are a few common mistakes new divers make — what are they, and how do you avoid them?

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New stuff

More Than 2,000 Sharks Die in San Francisco Bay

Scientists are trying to explain a massive die-off of leopard sharks, Pacific angel sharks, and brown smooth-hound sharks in the San Francisco Bay.
by Thomas Gronfeldt
PADI specialties

Most Challenging PADI Specialties

Leaving your comfort zone (in gradual and controlled circumstances) can make you a better diver. What are the most challenging PADI specialties to help you grow?
by Andy Phillips
Ear Barotrauma

Training Fundamentals: Ear Barotrauma

The most common scuba diving-related injury is ear barotrauma. Why does it happen, and how can you avoid it?
by Marcus Knight
Spanish Dancer

Marine Species: Spanish Dancer

On a night dive in the tropical Pacific, you see what appears to be an animated vermillion dinner napkin convulsing wildly. Congratulations, you’ve spotted a Spanish dancer.
by Guest Author Christina Koukkos