Author

Thomas Gronfeldt

Writer

Thomas started diving during college and has since been diving over most of the world: Australia, Indonesia, Iceland, France, and many other places. He is a NAUI instructor and a commercial diver, and participates in environmental and archeological diving projects around the world.

Stories by Thomas
Dive Guide
New to Scuba Training

The Proper Role of a Dive Guide

The proper role of dive guides is not to keep you safe, but rather to assess the safety and suitability of the dive site and act as a tour guide.

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Scuba Diving
Freediving New to Scuba Training

Scuba Diving, Snorkeling, Skin Diving, Freediving: What’s the Difference?

You have plenty of friends who don’t dive. Here’s how to explain to them the difference between scuba diving, snorkeling, skin diving and freediving.

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Scuba Diving and Old Age
Health In the Water

Scuba Diving and Old Age

Diving is perfectly safe for most of us as we get older, but there are some things to keep in mind when it comes to scuba diving and old age.

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Humpback Whale Congregation
In the Water News

Humpback Whale Congregation Mystery May Be Solved

Scientists may have solved a decades-long mystery of mass humpback congregations taking place off the coast of South Africa

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New stuff

Removing Invasive Seaweed Around Channel Islands National Marine Sanctuary

Invasive seaweed at Channel Islands National Marine Sanctuary has found an enemy in underwater landscaper and PhD student Lindsay Marks.
by Guest Author
Galapagos Islands

The Greatest Hits of the Galapagos Islands

Diving in the Galapagos Islands is nothing short of spectacular and a 10-day trip on board Galapagos Master can make a once-in-a-lifetime visit a reality.
by Rebecca Strauss
Ron Watkins

Photographer Spotlight: Ron Watkins

In this series of articles, we’ll shine a spotlight on some of the world’s best underwater photographers. Today we highlight Ron Watkins.
by Guest Author
Drift Diving

Training Fundamentals: Top Tips for Drift Diving

Drift diving can be effortless or challenging, depending on the dive site. Here are our top tips for staying safe when drift diving.
by Marcus Knight