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Updated September 17, 2018
These brief news articles below were sent out via email to all divers who signed up for our free email list.
You can sign up here to receive future Undercurrent Online Updates and get news alerts and special offers like these every month.

Want to be Seen at the Surface?
Aqua Lung Replaces a 30-Year-Old Regulator
Watch Out for Spears – Especially Your Own
Glass, Not Plastic
Florida’s Red Tide Moving North
Fire Wrecks Curaçao’s Oldest Dive Business
A Must-Have Dive Accessory
Subscribe Now
What You’re Missing in Undercurrent this Month
Free to Read in Undercurrent This Month

Surface Flag

Want to be Seen at the Surface?  September 17, 2018

To be more visible than with a safety sausage, consider deploying a pop-up flag on an extending pole. You carry it strapped to your tank with bungee cords, and when the time comes, it extends to well above wave height. The only supplier seems to be in the UK, but if you order the flag they will ship it to North America for a total cost of about $50.

Aqua Lung Replaces a 30-Year-Old Regulator  September 17, 2018

Juli Tracy (San Diego, CA) wrote to Undercurrent about her US Divers Conshelf 21 regulator -- she bought it in 1987 and had it regularly maintained, but discovered a crack in when she took it in for servicing this year. Fortunately, Tracy held on to the original receipt, and Aqua Lung, through her dive shop, Ocean Enterprises, replaced her regulator with a brand new Titan Classic – all for the cost of $15 shipping. Kudos to Aqua Lung for extending great service to a long-time customer.

Watch Out for Spears – Especially Your Own  September 17, 2018

A Maryland spearfisherman was in critical condition after he accidently shot himself in the head with his speargun while aboard his boat. The Coast Guard answered the 911 call from another person aboard his cabin cruiser, 35 miles off the coast of Ocean City, on September 2, and flew him to Baltimore for emergency treatment.

Glass, Not Plastic  September 17, 2018

Per our article last month on magnifiers for underwater use, subscriber Ken Paff (Richmond, CA) makes the point that when choosing a magnifying glass for spotting macro critters underwater, it’s important to choose one with a glass lens. The refractive index of plastic is too close to that of water to be effective when immersed.

Florida’s Red Tide Moving North  September 17, 2018

The deadly algae bloom is creeping north, stretching more than 20 miles from Clearwater to St. Petersburg and now Tampa Bay. Hundreds of thousands of fish, hundreds of turtles, manatees, a whale shark and even a whale are victims. It’s become a political issue in the upcoming primaries, since much of the cause it due agricultural runoff, and issue ignored by Florida politicians.

Fire Wrecks Curaçao’s Oldest Dive Business  September 17, 2018

Likely arson has destroyed this Caribbean island’s longest-established dive school. Dive Wederfoort in the village of Sint Michiel, which is north of the capital, Willemstad, had been operating for 63 years when it was completely destroyed by fire last month. The frequency of burglaries in the area meant that no insurance company would cover the risk, so joint owners Patrick Geers and Shay Janga are attempting to raise $43,000 via GoFundMe to rebuild.

A Must-Have Dive Accessory  September 17, 2018

Drybags come in a range of sizes to accommodate differing needs. Astute and experienced passengers on liveaboards keep their essential items, such as passports and credit cards, in a drybag and leave it for safekeeping with the skipper in the wheelhouse. Nobody wants to be searching for such items in cabins below decks should the worst happen.

Subscribe Now  September 17, 2018

and get immediate access to all of our back issues. You’ll also get a free download of There’s a Cockroach in My Regulator, our 242-page book with the most outrageous and insightful true dive stories Undercurrent has ever published. All for $29 for eight months, and my personal money-back guarantee. To join the club of thousands of other experienced divers who subscribe, get our special rate of $29 for eight months by simply clicking HERE.

What You’re Missing in Undercurrent this Month  September 17, 2018

A frozen-in-time Caribbean isle . . . readers report on Bonaire, Cozumel, Fiji, Palau and other places . . . we tell the dive industry to stop with single-use plastic . . . how exercise, diving and dehydration can sometimes make a bad mix . . . why it’s more than just the diving that makes liveaboards the best dive boats . . . new pirates of the Caribbean . . . Divers most at risk of heart-attacks . . . is your regulator mouthpiece causing you pain? . . . the red menace off Florida’s shores . . . a legal ruling puts Hawaiian fish collectors are in a fine mesh . . . why – and how – you can reduce your carbon footprint . . . and much, much more.

Free to Read in Undercurrent This Month  September 17, 2018

“Deadman Diving” is apparently sweeping across Asia, and ostensibly enjoyed by many Chinese tourists. What is it exactly? Some dive centers give untrained tourists an in-ocean experience by putting them in scuba gear, minus the fins, and have dive guides drag them around underwater. A number of readers wrote to Undercurrent concerned about the risk to both the people and the environment. When questioned, the training agencies remained tight-lipped. You can read about it for free here . . .

Undercurrent has drawn attention to concerns about safety and design issues of the Sherwood Avid BC several times before, but we still get reports of complete failure of the system that attaches the tank to the diver -- with dramatic consequences. We’re warning unsuspecting users once again; you can read it for free here ...

Ben Davison, editor/publisher
Contact Ben


Note: Undercurrent is a registered 501(c) (3) not-for-profit organization donating funds to help preserve coral reefs. Our travel writers never announce their purpose, are unknown to the destination, and receive no complimentary services or compensation from the dive operators or resort.

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Highlights of Previous Online Updates*

Here are past Online Update emails sent out . You can sign-up for free to receive these in the future here.

December, 2018

November, 2018

October, 2018

September, 2018

August, 2018

July, 2018


May, 2018

April, 2018

March, 2018

February, 2018

January, 2018

December, 2017

November, 2017

October, 2017

September, 2017

August, 2017

July, 2017

June, 2017

May, 2017

April, 2017

March, 2017

February, 2017

January, 2017

Online Updates* Archive, 2000-2016

* Sometimes referred to as Upwellings

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