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Updated September 26, 2023

Breath-taking Ocean Images
Golf Sharks
You're Reading is Our Free Mid-month Email
This month in the Undercurrent newsletter
Free to Read
Those Crazy Russian Divers
Orcas Taking Revenge?
New Mexico, a Hotbed for Scuba?
Spectacular Diving in Indonesia
Time to Subscribe to Undercurrent?

Oceanographic Ocean Photographer of the Year 2023 - Jialing Cai

Breath-taking Ocean Images   September 26, 2023

The winning and commended images of the Oceanographic Ocean Photographer of the Year 2023 competition were recently announced, with the marine biologist and amateur photographer Jialing Cai from the China named the overall winner for her image of a paper nautilus floating on a piece of ocean debris taken in the Philippines. The gallery of winners by contest organizers Oceanographic Magazine, with subjects from the very large to the very small, can be seen here.

Humpback whale mother and calf

Golf Sharks.   September 26, 2023

For nearly two decades, the Carbrook Golf Club near Brisbane, Australia, had the ultimate water hazard: a lake teeming with bull sharks. They arrived in 1996 when raging floods swept six young bull sharks from a nearby river into a 51-acre lake near the golf course's 14th hole. When the floodwaters receded, the sharks found themselves stuck, surrounded by grassy hills and curious golfers. The sharks spent 17 years in the lake, sustaining themselves on its large stock of fish and the occasional meat treat provided by the club's staff. One shark was illegally fished out, while the others ultimately vanished after subsequent floods. Peter Gausmann, a shark scientist at Ruhr University Bochum in Germany, said they proved that bull sharks can live indefinitely in low-salinity water. (NYTimes)

You're Reading is Our Free Mid-month Email.  September 26, 2023

Why not receive our ten monthly, 16-page, ad-free newsletters and become a paid subscriber? We cover subjects other dive publications avoid for fear of upsetting their advertisers. But we don't accept advertising. We are accountable only to divers. Our travel reviews are written by undercover authors who pay their way. Our stories cover equipment problems, liveaboard safety, the ins and outs of tipping, how dive insurance can fail you, and much, much more. In December, you will receive the Travelin' Diver's Chapbook, filled with hundreds of travel reviews by fellow subscribers. Not only that, you have full access to more than 10,000 Undercurrent independent readers' reports -- opinions and impressions posted without fear or favor by those who have stayed at the resorts or have been on liveaboards worldwide. I am offering you a seven-month trial subscription for just $19.95. And I'll send you a FREE download of the 40-page e-books Eight Great Liveaboards (and One Disaster) and Eight Great Dive Resorts (and One Dog). If you want your money back at any time during this period, you'll get it, a promise I've kept since we started publishing in 1975. Click Here.

This month in the Undercurrent newsletter.   September 26, 2023

A trip on MV Ferox to Colombia's Malpelo Island . . . Our disappearing reef sharks . . . The tricky trumpetfish . . . An encounter with SIPE . . . Cayman, Maui, Taja Ampat, Texas, our reader's report . . . Homage to Stan Waterman . . . Is Wetpixel breaking bad? The slippery slope towards fraud? . . . Four North Carolina divers rescued far out to sea . . . The Dive – 90 minutes on Amazon with 22 minutes of air supply . . . Divers of a certain age – still diving? . . . Underjungle – an underwater fantasy . . . and much, much more.

Free to Read.  September 26, 2023

Little Cayman, Maui, Raja Ampat, Texas oil rigs – thresher sharks, dying reefs, and barefoot elegance. Undercurrent readers report their experiences and they don’t spare any blushes. You can read it and more for free here.

Those Crazy Russian Divers.  September 26, 2023

In the August Undercurrent, our contributor wrote, "The hyperbaric facilities in both Hurghada and Sharm el Sheikh have had plenty of experience thanks to the crazy Russian divers who flock there." True to stereotype, a Russian diver, Kristini Osipova (46), went missing in late August after her husband, Yuri Osipov (41), left her at 400 feet (indicated by his computer) as she continued deeper at a reef south of Hurghada. The husband returned to their liveaboard, suffering decompression sickness. The search for his wife was unsuccessful. There were 27 Russian divers on a 10-day diving charter on a vessel reportedly called MY Turquoise. So-called experts were quoted in the Egyptian press as saying, "After 15 hours underwater, there's every chance she may not still be alive!" How insightful.

Orcas Taking Revenge?   September 26, 2023

More than 250 boats have been damaged by orcas since 2020, with 15 of the Iberian peninsula's orcas believed to be responsible. Scientists say the Mediterranean rammings are just a playful fad, warning that demonizing them could put the already endangered animals at risk. The animals caused damage, varying from teeth marks on vessels' rudders to the sinking of five boats. No doubt some enterprising writer is already conjuring up a story demonizing orcas as Jaws demonized sharks.

New Mexico, a Hotbed for Scuba?  September 26, 2023

That's what would have us believe. Albuquerque has eight scuba schools, three within two miles of each other. So, what's the attraction in this landlocked state, Breaking Bad country? About 120 miles away is a big, rocky sinkhole filled with groundwater. Technically, the Santa Rosa Blue Hole is an 80-foot-deep artesian well with excellent visibility, one of the few training sites in the American Southwest. Divers from Oklahoma, Texas, and Colorado drive to fin in its refreshing 62°F water.

Spectacular Diving in Indonesia.   September 26, 2023

One of our well-traveled writers visited an isolated embryonic resort, Maratua Island, Kalimantan, Indonesia. and found the reefs loaded with everything from critters to thresher sharks, and there was hardly a diver around. We've posted her story on our website and you can read all about it here.

Time to Subscribe to Undercurrent?   September 26, 2023

If you enjoyed our mid-month email, you'll enjoy the Undercurrent newsletter more. Not only that, in addition you have full access to more than 10,000 Undercurrent independent readers' reports -- opinions and impressions posted without fear or favor by those who have stayed at the resorts or have been on liveaboards worldwide. I am offering you a seven-month trial subscription for just $19.95. If you want your money back at any time during this period, you'll get it, a promise I've kept since we started publishing in 1975. Click Here.

Ben Davison, editor/publisher


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.

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.


16 March, 2024

16 February, 2024

15 January, 2024

16 December, 2023

28 November, 2023

25 October, 2023

26 September, 2023

18 August, 2023

20 July, 2023

12 June, 2023

27 May, 2023

22 April, 2023

21 March, 2023

21 February, 2023

22 January, 2023

17 December, 2022

26 November, 2022

19 October, 2022

23 September, 2022

15 August, 2022

21 July, 2022

21 June, 2022

16 May, 2022

29 April, 2022

30 March, 2022

25 February, 2022

24 January, 2022


3 December, 2021

27 October, 2021

21 September, 2021

August 18, 2021

28 July, 2021

12 June, 2021

21 May, 2021

26 April, 2021

11 April, 2021

27 March, 2021

12 March, 2021

28 February, 2021

9 February, 2021

31 January, 2021

20 January, 2021

5 January, 2021

20 December, 2020

1 December, 2020

15 November, 2020

1 November, 2020

13 October, 2020

1 October, 2020

21 September, 2020

9 September, 2020

21 August, 2020

8 August, 2020

18 July, 2020

8 July, 2020

25 June, 2020

9 June, 2020

May, 2020

April, 2020

March, 2020

February, 2020

January, 2020

Online Updates* Archive, 2000-2019

* Sometimes referred to as Upwellings

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