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 tables
Training

Training Fundamentals: Are Dive Tables Obsolete?

As scuba diving moves forward and technology develops, is there still a place within diving for traditional dive tables?

by
Rescue Diver
Training

Training Fundamentals: Becoming a Rescue Diver

The rescue diver course is a key step in a diver’s development. How will you know when you’re ready and how can you prepare?

by
surface signaling devices
Training

Training Fundamentals: Best Surface Signaling Devices for Divers

Surface signaling devices are an essential piece of diving equipment. In what circumstances might you use one and what options are available?

by
scuba instructor
Training

Training Fundamentals: Becoming a Better Scuba Instructor

Becoming a better scuba instructor is an ongoing process. What makes a good instructor and how do you improve?

by
New stuff
Great Barrier Reef

Mission Complete: The Great Barrier Reef Survey

Marine biologist and underwater photographer Johnny Gaskell recently explored the Great Barrier Reef in search of the truth on its current condition.
by Deborah Dickson-Smith
southern california sea life

A Beginner’s Guide to Southern California Sea Life

Beneath the waves lies a wonderland — Southern California sea life inhabits a magical realm, including forests, canyons and caves. Here are some highlights.
by Frankie Grant
sawfish

Sharks and Rays on the IUCN Red List

The IUCN Red List was established to track threatened species. Unfortunately, 28 sharks and rays appear on the list. Here’s the lowdown on 20 of them.
by Juanita Pienaar
Sebastian

Saving Sebastian — A Story With a Happy Ending

Tired of hearing tear-inducing awful news? Check out Sebastian the crab's story — with a happy ending.
by Beth McCrea