Why I Built DiveToolKit — And Why It’s Free

I have been diving since 1993 and instructing since 2009.
The Quiet Below: Why the World Disappears When You Go Underwater

Ask a diver why they keep coming back and the answer is rarely about the fish.
What Lives in Anilao: A Field Guide to the Richest Reef on Earth

The standard marketing line for a dive destination is a species list.
The Sea as Archive: Samurai, Silver, and Sunken Galleons in Philippine Waters

On the morning of 14 December 1600, two fleets met off the coast of what is now Nasugbu, Batangas.