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
Dive Safety Equipment
Training Health In the Water

Top Five Pieces of Dive Safety Equipment

These top five pieces of dive safety equipment can help make your dives more comfortable, stress-free and, potentially, save the day.

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Diving in a Tidal Region
Training In the Water

Training Fundamentals: Diving in a Tidal Region

If you’re diving in a tidal region, you must take some time to plan your dive with a little more care.

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dive boat leaves you behind
Training In the Water

What if the Dive Boat Leaves You Behind?

It’s every diver’s worst nightmare: you surface to find that the dive boat has left you behind. What should you do?

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regulator free flows at depth
Training

What if your regulator free flows at depth?

Although modern regulators are painstakingly designed to offer great reliability, sometimes things go wrong. What should you do if your regulator free-flows at depth?

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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