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.

by
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.

by
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.

by
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

Paralenz Comes to DEMA 2018

Visit Paralenz at booth 2365 at DEMA in Las Vegas this year to see everything that's new with the camera built by divers, for divers.
by Press Release
Maldives Underwater Festival

Maldives Underwater Festival Celebrates Whale Sharks, Turtles and More

A recent festival at LUX* South Ari Atoll resort in the Maldives celebrated whale sharks, turtles and more.
by Deborah Dickson-Smith
Whale-Shark Ultrasound

First Ever Whale-Shark Ultrasound

Researchers in the Galapagos have successfully completed ultrasounds on free-swimming whale sharks and taken blood samples from adult whale sharks for the first time ever in the wild.
by Guest Author
Costa Rica Blue

Book Review: Costa Rica Blue

Every dive destination needs a guide as comprehensive and lovingly written as “Costa Rica Blue,” which covers what lies under the waves of this Central American paradise.
by Rebecca Strauss