Walt Stearns, Author at Underwater Journal

Beautiful orange sea horse taken at the Blue Heron Bridge.

Palm Beach County’s Famous Blue Heron Bridge

April 20, 2024 Walt Stearns Atlantic & Caribbean, Diving, Florida's East Coast, Local Diving, Marine Life, World Dives

West Palm Beach’s Blue Heron Bridge is more than an easy spot for a shore dive, it’s also one the[…]

Divers framed by the main entrance of the Hole-in-the-wall off Jupiter Florida.

Deep Dive on Florida’s Mysterious Hole-in-the-Wall

April 17, 2024 Walt Stearns Atlantic & Caribbean, Diving, Florida's East Coast, Local Diving, World Dives

Every destination has its “Signature Dive.” In most cases it’s a particular wreck, reef or animal attraction that is touted[…]

Galvanic corrosion is an electrochemical process in which one metal type corrodes preferentially to another metal type when both metals are placed in contact with an electrolyte like sea water.

Battling Galvanic Corrosion

December 12, 2023 Walt Stearns Dive Ed, Dive Gear, Diving

Saltwater is harsh on metals like aluminum, but there is solution to keeping Galvanic Corrosion at Bay. Place two dissimilar[…]

Pod of spinner dolphins at Garden Eel Cove off Hawaii's Kona Coast.

Kona Coast Hawaii; Diving the Big Island

April 2, 2023 Walt Stearns Pacific, Wanderlust, World Dives

The big island of Hawaii is somewhat of a contradiction. Although it is the largest island in the Hawaiian island[…]

By itself the Optima CM is a fully functional, electronic closed circuit oxygen rebreather that can be readily fastened to most types of scuba harnesses like it is here on Jared Hires’ Nomad Side Mount system.

Dive Rite’s O2PTIMA CM Rebreather

February 22, 2021 Walt Stearns Dive Gear, Diving, Gear Reviews

“Incredibly versatile, self-contained, and travel ready.” That’s how Dive Rite describes their O2ptima CM rebreather. It is an electronic, fully-closed system,[…]

Fun Fish Trivia: Ahi Tuna

November 25, 2020 Walt Stearns Marine Life

You have mostly seen it on several restaurant menus. And like most, assumed the word Ahi means seared yellowfin tuna.[…]

Retra Prime Underwater Flash

November 16, 2020 Walt Stearns Photo Equipment, Photography

An In-depth, hands on review detailing what Retra’s new Prime flash can provide in the way of performance for the serious wide-angle underwater photographer.