Miscellaneous Blogs
Book Review: Blind Descent by James M. Tabor
Blind Descent by James M. Tabor takes the reader into the world of super caves, to perpetual night and the remarkable men and women who probe the depths as they seek to find the deepest place on earth. It is a world thousands of feet below the earth’s surface and miles from an exit. It is a world explored by slithering through passages that try to snag you, crawling along narrow ledges that may crumble beneath you, negotiating icy waterfalls and rivers that try to wash you away, ‘worming’ your way through delicately balanced boulders that could crush you, scaling vertical rock faces and diving through murky sumps and water filled passages – with no knowledge of what is on the other side.
If you think it is a peaceful place, think again, because Tabor describes how caves breathe as air moves through them. He explains how: “Little caves sigh. Big caves blow. Supercaves roar” (page 18), some like the noise of a jet engine! It is certainly not a world for the claustrophobic, the physically challenged nor the faint hearted.
This true life account of the quest to discover the deepest place on earth revolves around two very different men, their different leadership styles, two very different super caves and years of energy sapping exploration. Bill Stone, an American engineer, is portrayed as an abrasive, impatient and physically imposing man who is driven, some would say obsessed, in his exploration of the Cheve super cave in Mexico and desire to have probed the deepest. To by-pass pools and sumps Stone designed an early rebreather that allowed him to explore underground waterways that had been barriers to his progress; waterways that were totally unforgiving. One particular quotation, whilst in another Mexican super cave, called Huautla, typifies his determination after decades of exploration: “This is my last chance, maybe my only chance. I’m going to push this cave to the bitter end. No matter what.” (p.126)
The other cave explorer, a Ukrainian scientist called Alexander Klimchouk, is described as mild, considerate and painstaking in his planning as well as the safety of his team. Although expedition leader he typically delegated many aspects of the exploration of the Krubera super cave in the Republic of Georgia, and subsequent achievement of key milestones, to others. His scientific publications, work in creating caving societies, track record in inviting groups from other countries to work with him and sharing the accolades bestowed illustrates his desire to be inclusive. However, the account of these separate quests reveals that neither leadership style is without its problems. Sometimes others pay the ultimate price for the demands they make. Tabor recounts the tragic deaths of cavers and cave divers in the comment: “Cave diving, by itself, is extravagantly dangerous, but recovering dead bodies from caves is even worse. For one thing, divers usually die not in benign places but in the more dangerous parts of caves”. (page 82)
As a recreational diver I find it difficult to imagine the challenge faced by Gennadiy Samokhim who performed a free dive, through a sump, at over 6,000 feet deep within the Krubera cave, with no knowledge of how far the sump extended, what snags were present and what lay at the other end. Similarly, those cave divers who man-handle their air tank along tight passages where: “It takes not much force at all to yank the mouthpiece from between your teeth, and if that happens, in what is almost certain to be zero visibility, your chances of finding it again before you drown are not so good.” (page 33) What is common in both accounts is the meticulous planning, physical endurance, commitment and bravery to probe… that extra few feet.
The Cheve super cave, at almost 5,000 feet deep, is described as having remarkable and beautiful features as captured in some of the colour photographs presented. Indeed, many of the descriptions of particular features like Giant’s Staircase, a boulder strewn ramp with a slope like an Olympic ski jump, a 100 foot cascade of water named Nightmare Falls and a clear aquamarine pool called Swim Gym reflect the variety and grandeur of the cave. However, at the end of an exploration Bill Stone likened: “…coming up out of Cheve to ascending El Capitan, (the famous rock climb in Yosemite National Park, USA) through a waterfall, at night.” (page 52)
In contrast Krubera, at over 7,000 feet deep, is described as: “an ugly cave, tight, wet, freezing and unrelentingly vertical” (p.226-227). Negotiating the ledges in Krubera was like: “crawling under your car (while half submerged in flowing water) for thousands of yards.” The water running through the system was just above zero centigrade.
Many of us will have strolled through floodlit tourist caves and grottos, protected by numerous health and safety walkways, for a few minutes. The explorers in Blind Decent spent weeks underground in energy sapping work and cold where the psychological demands are often as great as the physical. Claustrophobia, anxiety attacks, insomnia and hallucination were not uncommon. Indeed, a feature that sets Blind Descent apart from similar books is the exploration of the different psychological pressures the cavers faced as well as the personalities of Bill Stone, Alexander Klimchouk and of the impact of unrelenting toil and stress on their team members.
If I have a criticism of the book it would be in relation to the absence of simple illustrations depicting the main route through the super caves. The book does provide almost forty colour photographs, many providing spectacular images of caverns and waterfalls, passages and sumps. However, it is difficult to visualise the convoluted routes that the explorers followed and the position of key features between established camps. It is clear that the caves were surveyed with modern 3D technology. Simple diagrams of the route between one camp and another, one key feature and another would help the reader to place the discussion within the cave system.
Blind Descent will certainly give you an insight into the world of super caves and extreme cave diving; even if few of us follow.
- Blind Descent (2010) New York: Random House
- By James M. Tabor
- ISBN 978 1 4000 6767 1 286 pages
About James M. Tabor
James was born in Virginia. USA, raised in Connecticut and studied in Vermont where he now lives. He has published several books:
Forever on the Mountain (2007); The Deep Zone (2012); Lethal Expedition (2012); Frozen Solid (2013) and Antiques & Willmot (2014).
His writing has appeared in Reader’s Digest, Smithsonian, The Wall Street Journal and the Washington Post. He is a former contributing editor of Outside magazine and Ski magazine.
For a full list of his publications see www.jamesmtabor.com
Find out more about Professor Fred Lockwood, who is also a published author, at www.fredlockwood.co.uk.
Welcome to Day 5 of Scubaverse.com’s week-long Christmas Gift Guide!
Struggling to find the perfect gift for that special scuba diver in your life? Read on for Team Scubaverse’s pick of this season’s must-have Christmas gifts.
Every day this week, we are publishing a special Christmas Gift Guide full of different gift ideas that are all ideal for divers, so you’re sure to find something that’s perfect. Take a look at today’s selection below…
SlipIns DiveSkins
Team@slipins.com / www.slipins.com / SlipIns Facebook / SlipIns Instagram / SlipIns Pinterest
DiveSkins are perfect for scuba diving, snorkeling, swimming, paddling, surfing, and all water sports. It shows up beautifully in pictures under water.
This tight-fitting, tailored lycra suit offers maximum comfort. stretchy, breathable, fast-drying fabric with the world’s best sun and stinger protection.
SlipIns are:
*Ultimate 50+ UPF sun protection
*Abrasion protection.
*Quick dry, breathable, soft fabric
*The ultimate stinging critter protection
Save 10% on your order if you mention you saw this ad in Scubaverse in your order note!
SAVE YOUR SKIN…WEAR OUR SKINS
Team@slipins.com / www.slipins.com / SlipIns Facebook / SlipIns Instagram / SlipIns Pinterest
Diving Books from Miflex Hoses
sales@miflexhoses.co.uk / www.miflexhoseshop.co.uk / miflexhoseshop.co.uk/acatalog/Diving-Books.html / Miflex Hoses on Facebook
We stock a great range of Diving & Underground book titles, ideal to add to any order or simply buy as a gift for a friend.
Titles we have include:
Shipwrecks of the Dover Straits, Adventures Underground, Pioneers Beneath the Peak, Dive Truk Lagoon, Underwater Potholer, Images Below & many more.
From Authors including:
Stefan Panis, Martyn Farr, Duncan Price, Ron Young, Rod Macdonald, Chris Howes
Visit our website for more details.
sales@miflexhoses.co.uk / www.miflexhoseshop.co.uk / miflexhoseshop.co.uk/acatalog/Diving-Books.html / Miflex Hoses on Facebook
OrcaTorch D710 Dive Light – now available in pink!
sales@sea-sea.com / www.orcatorch.com / OrcaTorch on Facebook / OrcaTorch on X / OrcaTorch on YouTube
Already available in Black, Green, Red and Blue, the D710 Dive Light from Orcatorch is now available in Pink too.
Whether you’re a recreational or a professional diver, you’ll find the OrcaTorch D710 dive light useful in your underwater activities.
With max 3,000 lumens, the D710 is one of the strongest torches in its class. You also have plenty of brightness settings to choose from if you prefer less power.
It runs on one OrcaTorch 21700 5000mAh rechargeable battery with a Type-C charging port, easier for you to charge it anywhere. Now it offers five exterior colour options: Black, Green, Red, Blue, and Pink, to satisfy your diverse needs.
Featuring:
* Uses Luminous LED, max 3000 lumens
* Uses 1 * 21700 Li-ion battery
* 6° beam angle
* Offers four exterior colour options: Black, Red, Green and Blue
* Easy operation with side titanium alloy push-button switch
* Safe lock function, prevents mis-operation
* Intelligent Over-Heat protection
* Battery indicator
* Water pressure resistant construction, depth rated to 150 meters
* Reverse polarity protection, to protect from improper battery installation
* Over-discharge protection function
* Constructed from high-strength A6061-T6 aluminum
* Mil-Spec Type III hard anodized finish for durability and corrosion resistance
* Two sides coated toughened glass with high water pressure resistance under deep water
Sea & Sea is the home of OrcaTorch and other leading diving brands in the UK.
sales@sea-sea.com / www.orcatorch.com / OrcaTorch on Facebook / OrcaTorch on X / OrcaTorch on YouTube
Scubapro Luna 2 AI Dive Computer
Scubapro Europe Website / Scubapro USA Website / Scubapro on Facebook / Scubapro on Instagram / Scubapro on YouTube
SCUBAPRO, the world’s premier manufacturer of high-quality scuba diving equipment, introduces its second generation Luna 2.0, an easy-to-read, intuitive dive computer loaded with easy-to-use features and available in two versions, the Luna 2.0 and Luna 2.0 AI with wireless air integration.
Designed for new and casual recreational divers, the low-profile Luna 2.0 sits comfortably on the wrist. Its oil-filled plastic housing helps ensure reliable performance to depths of 120 meters. A large widescreen display features a high-contrast black and white matrix-segment LCD with full-sized characters for easy reading in all dive conditions. An intuitive menu and simple two-button interface lets the diver navigate the system with ease, aided by clearly marked screen prompts. The LUNA 2.0 offers two algorithms – Predictive Multi-Gas Bühlmann ZH-L16 ADT MB PMG or ZH-L16 + GF PURE, plus 21-50% nitrox compatibility and three selectable gasses for open circuit diving. Three dive modes are available – Scuba, Apnea and Gauge – to suit a range of diving activities.
The Luna 2.0 AI (air integrated) offers the same easy-to-use features and functions as the standard Luna 2.0 plus adds wireless air integration. This not only enables to easily monitor ythe tank pressure, it also provides true remaining bottom time (RBT) and allows the air consumption to be factored into the decompression calculation. Also available with the Luna 2.0 AI is an optional integrated heart rate monitor that lets visually track the heart rate and skin temperature to help staying in the personal target zone.
Both Luna 2.0 models include personalized dive management functions like PDIS (Profile Dependent Intermediate Stops) which calculates an intermediate stop based on N2 loading, current and previous dives and breathing mixes, and Microbubble levels that give the option to adjust the level of conservatism in the algorithm to match the individual experience level, age and physical conditioning for a more enjoyable dive.
The soft silicone arm strap offers a comfortable fit on the wrist, plus bungee mounts on the corners of the housing allow for alternate attachment methods. A Bluetooth Low Energy interface enables the download of the dive data to any iOS or Android device or PC/Mac (firmware can be user-updated), and the CR2450 battery is rated for up to two years or 300 dives.
Scubapro Europe Website / Scubapro USA Website / Scubapro on Facebook / Scubapro on Instagram / Scubapro on YouTube
35% off Red Sea Liveaboard Scuba Scene in Spring 2025
info@oysterdiving.com / www.oysterdiving.com / Oyster Diving Facebook / Oyster Diving Instagram
Embark on the ultimate diving adventure aboard the Scuba Scene, the luxury liveaboard offering an unforgettable Red Sea experience. Known for its exceptional service, safety, comfort, and world-class dive sites, Scuba Scene is the ideal choice for divers of all levels.
Dive into crystal-clear waters teeming with vibrant coral reefs, exotic marine life, and awe-inspiring shipwrecks. From the stunning Ras Mohammed National Park to the famous Thistlegorm wreck, Scuba Scene brings you to the heart of the Red Sea’s best sites. With spacious cabins, gourmet dining, and a dedicated crew that ensures every detail is perfect, this liveaboard guarantees relaxation and adventure in equal measure.
Now is the perfect time to book! Save a massive 35% on any sailing between 3rd March and 28th April 2025. Whether you’re a seasoned diver or taking your first plunge, Scuba Scene promises an experience you’ll cherish forever.
Don’t miss this chance to dive the Red Sea in style and at an incredible price. Book your adventure today!
Tel: 0800 699 0243
info@oysterdiving.com / www.oysterdiving.com / Oyster Diving Facebook / Oyster Diving Instagram
Welcome to Day 4 of Scubaverse.com’s week-long Christmas Gift Guide!
Struggling to find the perfect gift for that special scuba diver in your life? Read on for Team Scubaverse’s pick of this season’s must-have Christmas gifts.
Every day this week, we are publishing a special Christmas Gift Guide full of different gift ideas that are all ideal for divers, so you’re sure to find something that’s perfect. Take a look at today’s selection below…
Thalassas Ocean-Inspired Apparel
support@thalassas.com / www.thalassas.com / Thalassas Facebook / Thalassas Instagram / Thalassas tiktok
Dive into comfort and style with Thalassas! Featuring T-shirts, hats, leggings and more, each piece is designed to bring the tranquillity and beauty of the sea to your everyday life. Whether you’re lounging by the coast or exploring city streets, our gear has you covered.
Your purchase has a purpose! A portion of every sale supports beach cleanup initiatives and organizations.
HOLIDAY BUNDLE PRICING STARTS NOVEMBER 18th!
This holiday season, we’re offering bundle discounts on our best-selling tees, hats, and leggings! Mix and match to create your perfect set – and enjoy savings when you buy more. It’s the perfect time to stock up on ocean vibes for yourself or the diver in your life.
🌊 Holiday Bundle Discounts: Save More When You Buy More! 🌊
Don’t miss out, these deals won’t last long! FREE SHIPPING on all orders in the USA.
support@thalassas.com / www.thalassas.com / Thalassas Facebook / Thalassas Instagram / Thalassas tiktok
XDEEP Navy Signature Hoodie
info@nautilus.uk / XDEEP on nautilus.uk / www.xdeep.eu / XDEEP on Facebook
The long-awaited XDEEP Signature hoodie is finally available! Apart from being super-trendy, it’s also quality stuff: made in EU of 100% premium cotton with solid japan-made YKK metal zippers.
The main features of this stylish hoodie are the following:
– 100% cotton
– Strong metal zipper
– High-quality print
– Made in EU
Furthermore, all XDEEP hoodies and t-shirts (including fabric) are manufactured in EU using top quality 100% cotton.
The XDEEP Signature Hoodie is perfect for keeping warm and looking trendy at the same time.
To find out more about XDEEP products, visit www.xdeep.eu.
Nautilus are the distributor for XDEEP and other leading dive equipment brands in the UK. Find out more about Nautilus brands at nautilus.uk/our-brands.
info@nautilus.uk / Buy in the UK / www.xdeep.eu / XDEEP on Facebook
Oceanarium Regulator Bags & Octo Holders
sales@miflexhoses.co.uk / www.miflexhoseshop.co.uk / miflexhoseshop.co.uk/acatalog/Oceanarium.html / Miflex Hoses on Facebook
Oceanarium products offer great gifts for all lovers of life underwater, including unique designs of regulator bags, octopus holders, gear tags & cloak towels.
This range brings fun & enjoyment to your dive making your kit distinctive.
Check out the very popular regulator bags available in 6 designs, including the Oceanarium Whaleshark design, as well as the two new designs of Octopus Holders; Pygmy Seahorse & Jellyfish.
Buy a Christmas gift for a friend and make them smile… Diving is Fun!
sales@miflexhoses.co.uk / www.miflexhoseshop.co.uk / miflexhoseshop.co.uk/acatalog/Oceanarium.html / Miflex Hoses on Facebook
Fourth Element Pelagic Dive Watch
info@fourthelement.com / fourthelement.com / Fourth Element Facebook / Fourth Element Instagram / Fourth Element tiktok / Fourth Element YouTube
The Pelagic dive watch from fourth element combines British design with Swiss-craftmanship in a hand-built automatic watch which captures the essence of classic scuba-diving timepieces.
Named after the vast reaches of the open ocean, the Pelagic combines exceptional craftmanship with high-specification engineering. Designed in the UK and hand-built in Switzerland, it is rated to a depth of 500m. The Pelagic features a stunning automatic movement, seen through the sapphire crystal glass case back, powered by a Swiss made precision self-winding movement. This is a watch suitable for the most extreme environments on Planet Earth.
The Pelagic has a brushed stainless-steel case with the choice of 22mm silicone/rubber strap or stainless-steel bracelet. It features a helium escape valve, positioned at 9 o’clock ensuring that this watch is even equipped for saturation diving. The watch features a unidirectional black ceramic bezel, allowing maximum dive times to be planned, luminous hands and markers and date function.
Design detailing includes ‘fourth element’ engraved on the rotor, buckle (on the silicon/rubber strap version) or clasp (on the brushed stainless-steel version). The crown features the fourth element icon representing the four elements earth, air fire and water.
The Pelagic watch is packaged using only recycled materials (recycled PET) and FSC certified paper and card, demonstrating fourth element’s continued commitment to its OceanPositive mission.
TECHNICAL SPECIFICATION
– Movement: 26 Jewel Swiss Sellita SW200 automatic with hacking function
– Water resistance: 500m / 1640ft
– Helium escape valve: 9 o’clock
– Crown: screw down locking
– Case width: 44mm
– Case thickness: 14mm
– Shatter and scratch resistant sapphire crystal
– Lug to lug: 52mm
– Case material: 316l brushed stainless steel
– Bezel: 120-click unidirectional with black ceramic insert
– Swiss Super-LumiNova C3 on markers and hands
– Strap: 22mm silicone/rubber strap or brushed stainless steel bracelet
– Warranty: 2 years
– Swiss made
RRP: GBP £1475 / USD $1975 / EUR €1795 / AUD $2950 / CAD $2595
info@fourthelement.com / fourthelement.com / Fourth Element Facebook / Fourth Element Instagram / Fourth Element tiktok / Fourth Element YouTube
Nautilus Seascape Mask & Clamshell Case
info@nautilus.uk / nautilus.uk / Seascape Mask on nautilus.uk / Nautilus on Facebook
The Nautilus Seascape single lens mask builds on the experience of proven design with the latest technology.
The ultra soft liquid silicone skirt and strap ensure this frameless mask gives the best fit whilst ensuring a wide 120 degree field of vision.
The antislip buckles means the strap stays where set it and the ultra clear, high vision tempered glass means virtually all light passes through to your eyes.
A substantial nose pocket means that equalising is a joy and that, combined with comfort, makes this the ideal mask for most divers.
To find your nearest Nautilus dealer, click here.
info@nautilus.uk / nautilus.uk / Seascape Mask on nautilus.uk / Nautilus on Facebook
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