This guide walks you through the full setup process and outlines how to get the strongest possible GPS signal before and after every dive—so your logs are always accurate. 

Becoming a cave diver is more than just earning a certification—it is the manifestation of persistence, belief, and the refusal to let limitations bury a dream. Exploration isn’t about reaching a destination, but about constantly learning, adapting, and pushing the boundaries of what’s possible.

Shearwater is making significant moves this season with three breakthrough launches that elevate the diver experience, both in-water and out.  Each launch is designed to integrate seamlessly with its renowned lineup of dive computers. 

Diving demands physical readiness. Your health and fitness are critical once underwater, where you're solely reliant on your own strength and stamina. Diving isn’t a workout; it’s a sport that rewards preparation. By consistently building strength, boosting endurance, eating well, and prioritizing recovery, you not only enhance safety but also extend your diving years. 

Coal-black water, no bottom in sight. Somewhere deep in Patagonia, I sink fast—ears popping, light lost, computer unreadable. Survival means trusting gear I barely know. Then, a flash: my dive buddy's Peregrine shines like a beacon in the dark.

Whether you're a seasoned CCR diver or preparing for your first deep dive into Truk Lagoon, now is the time to start preparing your body, mind, and dive gear. Dirty Dozen Expedition Leader and Founder Aron Arngrimsson gives us some expert advice on how to prepare and what to expect.

Bonaire has long been celebrated as the Caribbean’s shore-diving paradise, to the point of earning the nickname of the shore diving capital of the world. But here’s the question: Is this reputation overshadowing its potential as a world-class tech diving destination?

Truk Lagoon is an absolute wreck diver’s paradise. Each wreck has its own “wow” factor — some feature pristine war relics, some are like underwater museums, and others are dazzling with marine life. Divers return to these sites again and again because every dive reveals something new. Dirty Dozen Expeditions give us some of their top picks for wrecks in this area to get us excited for our upcoming trip with them in 2027.

Calibration of rebreather electronics is one of the most critical processes when setting a rebreather to go diving. Always refer to the official rebreather manual provided by the manufacturer, as there are different processes depending on the specific rebreather, but here are some tips to help you get started.

When the world turns its back on the ocean’s silent guardians, Fins Attached dives deeper—charting unexplored nurseries, decoding migratory mysteries, and fighting for marine life one satellite tag at a time. From white shark pups in Mexico to majestic manta rays circling the Revillagigedo Archipelago, their science isn’t just data—it’s a lifeline. Fins Attached proves that when conservation is rooted in research, the ocean stands a fighting chance.

There are several possible root causes for a peripheral unit (Petrel, Nerd, LED HUD) that turns on by itself or cannot be turned off. Following these tips will help isolate the source of the issue so you can get back in the water as quickly as possible.

Rebreathers are complex devices that rely on numerous components to function correctly. When you encounter a problem, it’s valuable to isolate the issue to a specific component before seeking service. The idea is to verify whether a certain issue occurs with different peripherals or different head electronics.

Beneath the lush canopy of the Riviera Maya lies a hidden world of submerged caves, where a tight-knit community of skilled explorers charts underwater passages with unwavering dedication. These divers are driven not only by the thrill of discovery but by a shared mission to document and preserve one of Earth’s most enigmatic environments. In this space where science meets adventure, each new map drawn and each passage found deepens not just geographic knowledge, but the human bond forged through precision, teamwork, and a profound respect for the unknown.

Electronic components in a rebreather are essential for monitoring the partial pressure of oxygen in the breathing loop. Shearwater manufactures a variety of electronic components tailored to meet the diverse needs of rebreather manufacturers. Rebreather divers should understand these three main categories: communication protocols, functions, and connections.

 

This event has been honoring women in diving for 10 years. The world's biggest gathering of the largest number of female divers in the same place at the same time. Will a new record be set this year?

Explore the benefits of air integrated transmitters compared to traditional SPGs. Some key advantages include reducing failure points, gas management readings being more accessible, and having one less hose to streamline your setup. These insights might change the way you think about transmitters.

The Laguna Nichupté archaeological rescue project in Cancun demonstrates the importance of controlled underwater excavation, ensuring diver safety while assessing the site for historical remains. This project balances heritage preservation with infrastructure development, highlighting the meticulous methods used in Mexico's archaeological efforts.

 

When you’re diving trimix, a sudden change in plans can wreak havoc. Even when the weather isn’t cooperating, Malta offers some unique ‘second-choice’ dive sites that shouldn’t be ignored. Jason Brown visits an aircraft wreck with a fascinating history.

Malta has an undeniable allure for technical divers. Whether it’s the clear visibility, the ease of shore entry, or the thrill of exploring pristine heritage wrecks, this diving paradise delivers. From ocean liners and submarines to torpedo boats and bombers, Malta’s underwater world is as diverse as it is captivating.

You can’t choose when you will find a cave. But looking—truly looking—is what makes you an explorer. It's easy to join someone else's expedition when the groundwork has been done: the terrain walked, the entrances found, the first few meters of line laid. But if you’re an explorer, you will explore.

For many divers looking to move beyond recreational limits, South Sinai is where the journey begins. Whether you're moving gradually to decompression procedures or learning sidemount, this stretch of the Northern Red Sea offers training-friendly topography and legendary sites.

Shearwater Research Inc., a global leader in dive computer technology, has announced its expansion into the development and manufacturing of specialized dive equipment. The company unveiled the Shearwater Jetpack for Avelo diving.

A liveaboard dive trip is an unforgettable adventure, but preparation is key. From packing essentials to mastering safety protocols, the right planning ensures smooth sailing. Here are 15 lesser-known tips from Jill Heinerth to help you make the most of life at sea and focus on what truly matters—diving.

Technical diving is more than just gear and gas—it's a mindset shift. It opens the door to new environments, greater self-reliance, and dive sites that most never get to see. We've picked five legendary destinations that don't just challenge your skills, they inspire your evolution.

Following the successful 2022 launch of the Teric Journeys Edition, Shearwater Research is excited to announce the next chapter in its Journeys series with the debut of the Perdix 2 Journeys Edition.

In this second installment, we check back in with our panel of experts as they provide their insights into what happens below the surface, uncovering the best practices for shooting, communicating, and working efficiently in the demanding conditions of a cave dive. And when the dive is done, the process isn't over—post-dive review and editing continue to shape each image into its final masterpiece.

In this two-part guide, we've compiled insights from some of the world's most accomplished cave diving photographers to help enthusiasts navigate the complexities of this exhilarating craft. This is Part One, where we focus on the critical steps before the dive—from choosing the right equipment to strategizing shot composition.

The DiveCAN five pin connectors and the analogue four pin connectors are durable and reliable so long as a few steps are taken to care for them. To ensure the longest life and most reliable operation of DiveCAN connectors, please observe the following 
maintenance advice.

It wasn’t long ago that dive computers as we know them today didn’t exist. You planned your dives using tables and tracked your time with a simple bottom timer. But thankfully, modernity came for the dive industry. Contemporary dive computers, pioneered and refined by Shearwater, have completely changed the way we plan and execute dives. But there’s always a catch: the best dive technology is only as effective as the diver using it.

We’re proud to be sponsoring the 2025 ScubaBoard Invasion in Belize. Our Shearwater team is looking forward to a great dive adventure and a chance to meet ScubaBoard members from around the world. The Invasion is headed to Turneffe Atoll.

I have been diving and teaching on open circuit scuba for 29 years, so when people see me at the dive site with this box on my back I do get asked all the time why make the switch now? “What took you so long to make the switch?” or “Why bother switching to CCR now?”

Celebrating International Women's Day is an opportunity to highlight the remarkable achievements and contributions of women across various fields. In the spirit of this celebration, we turn our attention to the incredible female divers on Shearwater's Customer Care team. These women are not only experts in their field but also serve as inspirations to many aspiring divers around the world. 

This collaboration leverages Kinugawa's extensive distribution network and market insights to strengthen our presence, making our innovative dive computers more accessible to Japanese diving enthusiasts nationwide.

Let’s look at some of the Shark species that are local to the North Pacific: their history, their known biology, where to see them, what to do in an encounter, and how to help with conservation efforts.

One to two inches of visibility doesn’t excite many divers, and I can’t think of a noncommercial reason why someone would willingly brave blackwater conditions, facing strong currents, near zero visibility, and even the occasional alligator. Yet, I’ve found myself doing just that,

ScubaLab has named the Shearwater Tern and Tern TX the 2024 Testers Choice for recreational dive computers. Seven new dive computers were tested in a head to head evaluation. Here is what they had to say...

For those of us who love finding and diving on shipwrecks, diving is the means to the end and not the end itself. We are constantly looking for opportunities to explore and combine interests that include history, research, adventure and diving.

Divers who understand the inherent uncertainty in decompression modeling and want to take a more active role in their own dive planning can use available tools to tailor the limits to their needs or preferences. This is a good choice for dynamic conditions or complex dives, when the goal of simply staying away from limits gets hard to track. Gradient factors represent a good tool to actively manage risk.

Most people believe the North Atlantic Ocean is a dark, empty, and cold place, and while the latter is true, the ecosystems in Newfoundland are rich in biodiversity and overflowing with examples of intricate lifeforms and complex behaviour.

This collaboration aims to drive the advancement of diving systems and human performance, uniting Shearwater’s technical expertise with Avelo’s groundbreaking innovation. 

Follow this guide to properly maintain Fischer Connectors in your dive gear. They require ongoing maintenance to protect and prevent corrosion. If you see green, you have corrosion that needs to be removed.

Cave diving in the Yucatan is like travelling back in time. You may come across ancient Mayan relics, fossils, artifacts, or even animal and human bones. There are an estimated 8000 cenotes around Merida, with more being discovered all the time.

On July 24, 2024, Nathan & Kim Maker, from Oklahoma, had been boat-diving with a group off the coast of Texas when they were swept away by a storm current. They used their Shearwater Teric to navigate as they drifted out to sea, and survive the next 39 hours until finally rescued by the US Coast Guard.

The latest update shows how to identify Petrel 3 units that have been reworked or built after the rework to comply with the service update.

Bruce Lee’s mastery is considered legendary. This cave's name came from the difficulty of getting into the water - You need to crawl on your belly through a restriction, in thirty centimeters of water, to reach an air dome where there is space and height to attach sidemount tanks, then try to swim (or reduce the amount of crawling) to the other side of the airdome to be able to descend into the cave.

A second dive turns out to be even more interesting! During my descent, I can observe objects everywhere, but to avoid the inevitable dust, I descend to the lowest level first and ascend slowly afterwards. And that's when I turn around, I discover cardboard boxes with explosives inside! 

Stef Panis reveals his introduction to the underground world, the birth of his Mine Exploration Team, and the exciting first exploration of the La Morépire mine in Belgium.

Avoid these three situations to prevent unnecessary damage to any dive computer's depth sensor: cleaning, rinsing, or drying with high pressure, thermal stress, and chemical insult.

We love hearing about the adventures our Shearwater divers are up to. In celebration of Women's Dive Day this year, we reached out to some of our team to see what's coming up on their calendars. From the Caribbean to Japan, Socorro to Iceland, read the article for their next adventures and dive training aspirations.

A behind the scenes Q&A with award-winning Director Nays Baghai. He discusses why they chose to use rebreathers and other helpful tips for aspiring underwater filmmakers. Diving Into The Darkness is an awe-inspiring odyssey about cave diving icon Jill Heinerth, and her journey of exploration, resilience and self-discovery into the planet’s deepest depths. 

Diving with thresher sharks in the Philippines is nothing short of awe-inspiring. Being in the presence of these ancient ocean guardians, with their elongated tails slicing through the water and their eyes seemingly holding secrets from eons past. It’s an experience that leaves you both humbled and exhilarated.

The Cayman Islands will soon be expanding its remarkable collection of underwater sculptures with yet another captivating creation by Shearwater's own and world renowned sculptor, Simon Morris. Exciting plans are underway for a third bronze sculpture, The Angel of the Reef, to find its underwater home on Grand Caymen.

What if someone told you that they could show you things no human has ever seen or imagined. A portal to a different dimension—one where bioluminescent wonders come alive. Would you go?

On this World Oceans Day, let us dive into the depths of marine conservation and explore the remarkable efforts of Ocean Gardener, an organization ...

In the winter of 2022, my Peregrine was ripped off my wrist while returning to a dive boat during rough seas off the coast of Jupiter, Florida. My beloved Peregrine computer sank down to the bottom of the sea. One year later, that same Peregrine dive computer made it back into my hands and it still works!

Timber! Divers coming... As divers, we all know how much history is buried under the surface. We may think about the history of wrecks, of caves, mines or even how marine life evolves. But what about the mysteries and treasures of submerged timbers.

Step into the journey with the new Peregrine TX. A fusion of the beloved Peregrine's large screen and user-friendly interface, now with added air integration capability and a digital compass. Designed for sport divers, the Peregrine TX delivers the renowned Shearwater experience at extraordinary value.

Do you remember the beginning? That feeling: I can stay down here, I don’t have to go up. It’s a revelation. Suddenly, the seventy percent of the earth’s surface which is underwater, becomes available to us. It’s like being shot into outer space, to an alternative planet...

As a 15 year old, I ventured to Antarctica with Blue Green Expeditions to dive and help scientists study the Antarctic environment. We conducted roaming video benthic surveys, plankton tows, and looked for signs of Sea Star Wasting Syndrome.

Human Powered Submarine at Virginia Tech (HPS) is a student-run team that designs, builds, tests, and races a fully flooded human-powered submarine. 

Wish you could shoot shipwreck photos good enough to grace the pages of a dive magazine? Photo journalist Jason Brown reveals his ‘go to’ tricks to help you shoot better wreck photos.

Release notes and graph guide for Shearwater Cloud 2.11.0

Shearwater's most compact dive computer featuring a high resolution AMOLED display and air integration options, perfect for sport divers.

Now is the time to dust off your bucket list and get ready for 2024. Here are 12 dive destinations recommended by the team at Shearwater.

In Rangiroa, French Polynesia, an association dedicated to the study and protection of the great hammerhead shark. The waters of French Polynesia a...

ออกแบบสำหรับนักดำน้ำกีฬา, โมเดล Tern และ Tern TX ใหม่คือคอมพิวเตอร์ดำน้ำขนาดเล็กแต่ทรงพลังและใช้งานได้ง่าย ในราคาที่แข่งขันได้.

Photo courtesy of Britt Sweeting. Before I ever set foot in the ocean, I was painting it. The ocean materialized itself in my world as a child, ...

When the pandemic pushed our high school online, we were free to dive every week and explore the many sites San Diego has to offer. As aspiring eng...

Timber ! Les plongeurs arrivent. En tant que plongeurs, nous savons tous à quel point l'histoire est enfouie sous la surface. Nous pouvons penser à l'histoire des épaves, des grottes, des mines ou même à l'évolution de la vie marine. Mais qu'en est-il des mystères et des trésors que recèlent les bois immergés ?

Shearwater Firmware v97 is now available. This update is applicable to the Petrel 3, Petrel 2, and NERD 2. Due to hardware differences, not all f...

In April 2023 I was fortunate to join an expedition to dive in a cave that people rarely dive in Western Australia. This place is in the Nullarbor ...

Photo courtesy of Ian Seabrook. We had the opportunity to interview Ian Seabrook, an award winning Underwater Director of Photography in ...

ผจญภัยในแบบของคุณ ค้นพบ Adventures Edition ของคอมพิวเตอร์ดำน้ำ Peregrine! ทั้งสองสีใหม่ Light & Dark สำหรับการผจญภัยดำน้ำทุกประเภท

One night I couldn't fall asleep. Instead of tossing and turning and staring at the ceiling, I got up, turned on my computer, and started looking f...

Shearwater Research, the leading brand in dive computers, today announced the appointment of Jason Leggatt as the company's new CEO.

"With my sharks." Photo courtesy of Kewin Lorenzen. "I wish there were sharks in caves" is a fun expression to explain my equal love and desire ...

Getting cooked in my dry suit and carrying so much gear that I look like a swimming Christmas tree can only mean one thing, we are going for anothe...

We’re excited for the launch of DiveTrack. We've partnered with Sonardyne International to connect the Shearwater Petrel 2 and DiveCAN to DiveTra...

One of the things I very much enjoy, is watching rockfish along a reef. Something many divers enjoy as well. The issue is that the Puget Sound’s ‘E...

Shearwater Firmware v95 is now available. This update is applicable to the Perdix 2 and Petrel 3. Firmware v23 is now available for the Teric. Due...

Many people I know, consider their careers more “jobs” with the accompanying drudgery of the work they do, however, I am an example of how we can f...

Naval History and Heritage Command (U.S. Navy Brig Somers).   Delving deeply into the research of a shipwreck prior to exploration, alters the e...

Photo courtesy of Audrey Cudel. Have you ever pictured the world as part of a fractal dimension? A cauliflower dividing into fractions of itself....

Shearwater Firmware v93 is now available for the Petrel 3 and NERD 2. Adds features released in Version 91 and 92 (which was only released for Pet...

Shearwater Firmware v93 is now available. This update is applicable to the Petrel 2, Perdix, Perdix AI, and Perdix 2. Adds features released in Ve...

Photo courtesy of John Storbeck, Camano Island, Washington State. The Eastern Distinct Population Segment (E-DPS) Grey whale (Eschrichtius robus...

Klukkert and DRSS diver Ramos inspect a bone from an extinct Caribbean sloth in La Jeringa cave. Image credit: Phillip Lehman. Along the southwe...

Diver Rodolfo Robatti exploring a rocky coastline. Photo Credit William Winram. Feediving or breath-hold diving has been around for hundreds, if...

Photo courtesy of Alejandro ‘Uso’ Usobiaga. The Crown of Thorns Starfish (COTS) is a naturally occurring species on reefs within the Indo Pacifi...

Photo courtesy of Dean Martin. Me and technical diving are just at the beginning of a potential relationship. We’ve flirted and been on a couple...

Shearwater is excited to release Version 91 Firmware for our new Perdix 2 and Petrel 3 models only. Features introduced in this firmware may becom...

RICHMOND, British Columbia – June 1, 2022 – Shearwater Research Inc. is excited to announce updates of two iconic flagship Shearwater® dive comput...

English Version Available (Faire face à l'obscurité une fois de plus) Comment vous souviendrez-vous de cette période inattendue que nous avons trav...

French Version Available (Facing darkness one more time) How will you remember that unexpected period of time during which, for a moment, we kind o...

For many of us, the desire to explore is as natural as breathing. We wonder about what’s around the next corner and feel a compulsion to follow the...

The moment a diver enters the overhead environment, his or her gear, skills, and techniques must necessarily be top notch. The real question here, is AI accepted in cave diving? Shearwater's innovations and software, and specifically the SWIFT transmitters, make losing communications (comms) between the transmitter and your computer unlikely.

A diver’s decompression requirements depend solely upon the time, depth and level of oxygen over the course of the dive regardless of the fraction of helium and or nitrogen used in the breathing mix. The so-called “helium penalty, does not exist.

I have been living in Iceland for the past 7 years working in the dive industry. When everyone thinks of diving in Iceland they always bring to min...

This edition is inspired by dive helmets and tools used by divers over the years, reimagined in underwater adventure stories and movies.