Fifteen Divers on What Actually Scares Them Underwater

I posted a question on Threads. Divers, what scared you at the start? What was the closest you came to real trouble? I run a blog about the psychology of diving. I wanted to know what other people carry into the water.

Fifteen people wrote back.

The answers surprised me. Not because they were dramatic — some were — but because of what almost nobody mentioned, and what everybody mentioned, and the small honest sentences buried inside them that no dive briefing has ever contained.

Here is what actually came back.

Almost nobody was afraid of sharks

There was one shark story in the entire thread. And it was the exact opposite of what you would expect.

Anastasija cut her leg on dead coral on the way to a shark spot. She did not realize she was bleeding until she was hanging at depth and noticed a green haze coming from her ankle.

"Then almost simultaneously — sheer terror (thanks, Jaws) and the realization that sharks do not care about human blood. The sharks were swimming a metre from me, bleeding, without the slightest interest."

That is the whole shark content of the thread. One woman, bleeding, next to indifferent sharks, being terrified by a film.

The mind arrives at the dive already loaded. Jaws, Blue Planet, the abyss trope, every shipwreck documentary you have watched at 2 a.m. Then the water shows up and the loaded content plays over the top of it, whether or not the water agrees.

Nobody in the thread was hurt by a shark. Five people were nearly hurt by a current.

The current is the universal underestimate

Five separate divers, unprompted, wrote about being blindsided by a current. Not a hypothetical current. An actual one that separated them from their group, ripped their regulator sideways, or almost carried them into open ocean.

Raisa in the Maldives, February:

"Very strong current split me from the group. I could see them and we tried our best to stick together, but ended up in two different flows. And I was completely alone. It was interesting."

It was interesting. That is one of the sentences I keep returning to. She kept filming a blacktip that swam past her while she was drifting alone. Whatever was happening in her head, it was not panic.

Murrashka got saved by someone catching her fin. Elena had to rebuild her scuba on the boat with a spare regulator after the first stage failed to deliver at thirty metres in strong current. Schmallndotz described it best:

"When it hits like a firehose, the regulator gets twisted out, you hold the mask so it does not get ripped off. Instead of enjoying observing, you start fighting your own body and gear."

Fighting your own body and gear. That is what current does. The threat is not being swept away. The threat is that everything you have trained becomes wrong at once — trim, breathing, buoyancy — because the medium you were trained in has stopped behaving like the medium.

If you read enough of these responses in one sitting, you start to think Open Water courses should replace the shark chapter with a current chapter.

Kasparova almost drifted into open ocean

The most alarming current story is not framed as alarming. It is framed as calm.

Kasparova was in South Africa. Her SMB was up. She was on the surface. The waves were so tall that the boat could not see her. She started drifting away.

"In the moment I pulled myself together — panic is pointless, save energy, no idea how many nights I will be in the water with sharks that actually attack more there than anywhere. I did not even understand the whole gravity of the situation right away. By the time I did, so much time had passed that it was not triggering me as strongly."

Two things happen in that paragraph. She thinks about the sharks — the same sharks she is supposed to be scared of — and files them as a resource-management problem. Then she notes that the delay in understanding the danger was itself protective. By the time the reality landed, the initial adrenaline window had already closed.

This is not calm as a personality trait. Kasparova made a decision in water she could not control, and the decision held.

The bottom that was not there

Two divers, on different seas, wrote almost the same sentence.

Schmallndotz's first real dive after her Open Water was the Blue Hole in Dahab:

"There I got close to panic because there was no bottom. Or rather, there was, but very deep. It is psychologically hard because buoyancy is not trained yet and you constantly stare at the computer instead of enjoying the process."

Pavel described his first deep dive in the Mediterranean:

"Felt like falling into an abyss. Visibility was not great even though the day was clear."

Two people, two oceans, one fear. The bottom being far away is fine. The bottom being invisible is where the primal thing lands. Something older than diving reads the visual field as nothing to catch you and quietly sets off alarms in the older regions of the brain.

Both of them stayed calm. Neither of them stopped diving. But both of them named it — the specific way a body decides that a certain amount of open blue below you is a threat, even when the pressure gauge says otherwise.

When the gear becomes the enemy

The most alarming answer in the thread had nothing to do with the water.

Life__inspain, roughly a hundred dives in, was doing a routine buddy-octopus skill at the Maldives. She took her regulator back from her husband, put it in her mouth upside down, and inhaled water. She tried to purge. More water. Then, in her words:

"The picture collapsed into a black tunnel with some face at the end with a reg in its mouth. One thought — that is my regulator and I need to get it back."

She yanked the regulator out of that face's mouth and took a breath. Then she recognized her husband.

"In that moment I did not recognize who was in front of me. All I saw was the regulator and the thought that I needed to take it."

That is a hundred-dive diver. That is a trained person who dives with her spouse and a guide, doing a skill she has done many times, whose brain in the space of two failed purges collapsed the entire social world into a single object and a single verb: take it.

This is what panic looks like from the inside. Your brain decides it can only afford one thought, and the thought is not a kind one.

Diver_aquaholic wrote from a lake near Moscow. Near-zero visibility. He swam into tree branches and got his twin-set tangled in a rope that was already tangled in the branches. Could not go forward. Could not go back. Could not roll over. Could not reach the tangle. If his buddy had not been there he would have had to ditch the rig and cut himself out by feel.

Note the shape of both stories. In neither one is the water hurting anyone. In both, the gear is the antagonist.

Something happens to divers around the hundred-dive mark. You stop being scared of the environment and start being scared of the equipment that is keeping you alive in it.

The people who did not panic

The most useful sentence in the entire thread came from Elena, the diver who had the first-stage failure at thirty metres in strong current:

"Very grateful to my anxious brain that in a stressful situation I never give in to panic."

Read that twice. She is describing being an anxious person as an asset underwater. The reason she does not panic in a real emergency is that her baseline anxiety has already run every rehearsal. When the failure arrives, it is not new information.

Kasparova, drifting in South Africa: "panic is pointless."

Life__inspain, after coming to: "Shocked, of course. But my husband immediately signals all good."

Elena again: "I calmly assessed the situation, drew conclusions, and went for a second dive after rebuilding the scuba with a spare regulator."

None of these people are describing an absence of fear. Fear arrived for each of them. It got processed as data. It did not get to run the dive.

The industry keeps talking about "staying calm" as if calm were the goal. It is not. What you actually need is for fear to arrive without getting to make the next decision.

The overheads

Overheads produced the most honest paragraph in the thread. It came from a technical diver posting as theunderwaterpanda:

"I am a tech diver and I am afraid of overheads. I do not panic, do not pass out, but I am uncomfortable and I doubt it can be fixed. I only started entering wrecks this year — seven years after my first terrifying experience on the Thistlegorm. I never told anyone how scared I was. It was my first wreck penetration. And even then, I need a 'blue' reference — otherwise my only thought is we are fucked. Do not expect cave photos from me. Probably never."

Seven years. Full tech qualification. Still afraid.

The reason this paragraph matters is that it dismantles the you get over it story that runs through most dive marketing. She did not get over it. She built a life around a thing she remains uncomfortable with, chose the parts of it she could handle, and drew a permanent line at the parts she cannot. That is a functioning adult with fins.

Mantabar, who guides divers for a living, wrote about a different overhead fear — one that only shows up when you are responsible for other people:

"The scariest thing is turning around in a cavern and coming up short a diver. My breath caught every time. In a cave it is less scary — everyone has full cave, they are independent divers. But in a cave it is scariest for yourself, when your brain starts messing with you and doubting."

Two divers, both experienced, both scared of overheads — in inverted directions. One is scared of what might happen to her inside a hole. The other is scared of who might be missing when she looks back. Fear reorganises itself around whatever you are responsible for.

The instructors did some of the damage

Two stories in the thread implicate an instructor.

Evdokiia, on her first twelve metres with a last-minute-substituted instructor at the Maldives: he descended fast, she panicked trying to keep up, barely equalised, blew an ear, spent the rest of the trip talking to a Maldivian doctor in broken English and crying because she was not going to finish her Open Water in time.

Puhanovna, on all three days of her OWD in open sea in Egypt: constant panic. On the mask-off exercise she kept inhaling on the exhale phase:

"Until it hit me you do not inhale after exhaling."

Neither of these is really a story about the student. Both are stories about a training environment that produced fear where a calmer one would have produced learning. The Open Water course is where a huge percentage of divers form their first — and often permanent — relationship with fear underwater. Not all of them get to form it well.

What actually scares divers

Read the whole thread and you get a very different list from the one most non-divers would guess.

What barely appeared: sharks, marine life, deep water for its own sake, decompression, gas.

What appeared often:

• Current — five times, in four different oceans.
• Gear failure or gear becoming the enemy — three times, in wildly different contexts.
• Overheads — twice, from divers who had trained specifically for them.
• Instructor decisions — twice, both during entry-level training.
• The bottom you cannot see — twice, in Egypt and the Mediterranean.
• The inability to leave the space you are in — once, framed as claustrophobia, but tied explicitly to dependence on the device.

That last phrase came from Yundal_era, who had claustrophobia hit her twice — once during Open Water, once on her thirtieth dive. I think it is the master key to all of them.

What scares divers is the moment they realise how much of their life is currently outsourced to the object on their back.

The people who handle it best are not the ones who have that thought less often. They are the ones who have had it enough times that it no longer surprises them.

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Thanks to Anastasija, Raisa, Evdokiia, Elena, Mantabar, Leonoong, Kasparova, Murrashka, Schmallndotz, Life__inspain, Yundal_era, Diver_aquaholic, theunderwaterpanda, Puhanovna, and Pavel for writing back. Translations from Russian are mine; any misreading is also mine.