무료 참고 자료 · Mindful Diving Institute
Scuba diving hand signals
The signals below are the ones divers actually use. They are a reference, not a standard: your agency training and your pre-dive briefing decide what you use in the water. Agree them with your buddy before every dive — including the ones you think are obvious.
This page is complementary to, and never a substitute for, the safety standards and training of SSI, PADI, CMAS, RAID and other agencies. Signals are agreed in the briefing. Never use mindfulness practices during task-critical phases, and never breath-hold on scuba.
The essential five
Agreed before every dive, by every diver, in every language.
OK
방법
Thumb and index finger joined in a circle, the other three fingers extended. With gloves or at distance, arm over the head in a circle.수단
Both a question and an answer. Asked, it must be answered — silence is not an OK.Not OK / problem
방법
Flat hand, palm down, rocked side to side, then point at what is wrong.수단
Something is off. Say it early, at amber, not late at red.Up / end the dive
방법
Closed fist, thumb up.수단
An instruction, not an opinion. Any diver may end any dive, at any time, without giving a reason.Down / descend
방법
Closed fist, thumb down.수단
Begin or continue the descent, at the agreed rate.Stop / hold
방법
Flat open palm facing the buddy.수단
Stop adding tasks and stabilise here. The most under-used signal in diving.
Gas and pressure
Numbers vary by agency and by region. Agree yours on the surface.
How much gas?
방법
Flat hand tapped twice against the open palm of the other hand, or two fingers to the palm.수단
Answer with numbers, honestly and immediately.Half / turn pressure
방법
Flat hand held horizontally at chest height, or the agreed number shown on fingers.수단
The turn point of the dive plan has arrived.Low on gas
방법
Closed fist to the centre of the chest.수단
Reserve reached. Begin the ascent plan now, together.Out of gas
방법
Flat hand drawn across the throat.수단
An emergency. Follow the out-of-gas procedure you trained with your agency and rehearsed with this buddy.Share gas
방법
Fingers of a flat hand brought to the mouth, then reaching toward the buddy's alternate.수단
Give me your alternate air source. Practised on land, then in shallow water, before it is needed.
Direction, depth and pace
Most task-loading happens here. Keep signals slow and single.
Look / watch me
방법
Two fingers pointed toward your own eyes, then toward the object.수단
Direct your attention here.Go that way
방법
Flat hand held vertically, fingers pointing in the direction of travel.수단
The agreed heading.Slow down
방법
Flat hand, palm down, pressed gently downward.수단
Reduce pace and workload. Almost always the right answer.Level off / stay at this depth
방법
Flat hand, palm down, held steady and horizontal.수단
Hold this depth.Safety stop
방법
Three fingers raised over a flat horizontal hand: three minutes, five metres.수단
Hold the stop as planned. A good moment for slow, continuous breathing — nothing else.Stay together
방법
Two index fingers held side by side.수단
Close the distance and dive as a pair.
Problems and the body
Naming a small problem early is the whole skill.
Ear problem
방법
Point to the ear.수단
Equalisation is not working. Stop the descent, ascend slightly, try again gently. Never force.Cold
방법
Arms crossed over the chest, hands rubbing the upper arms.수단
Thermal reserve is going. Cold is a common quiet cause of anxiety and short dives.Cramp
방법
Two fists brought together and pulled apart.수단
Stop, stretch, let the buddy help.Slow your breathing
방법
Flat hand moved slowly up and down in front of the chest.수단
Return to slow, continuous breathing. Never breath-holding, skip-breathing or hypoventilation.Dizzy / disoriented
방법
Index finger circled beside the head.수단
Hold on to something stable, hold depth, signal the buddy and end the dive if it persists.
물의 갤러리
수면에서 합의하는 세 가지 추가 사항
표준 수신호 체계는 비상 상황을 전달하는 데 탁월하지만, 비상 상황 직전의 상태는 거의 표현하지 못합니다. 이 세 가지 신호는 입수 전 버디 합의에서 정합니다. 소속 교육 단체의 신호에 추가하는 것이며, 절대 대체하지 않습니다.
Amber
Flat hand tilted side to side, then the OK question. Agreed in the Buddy Agreement before entry.
I am not in trouble, and I am not fine. Slow down, stay close, check me again in a minute.
Settle
Open palm lowered slowly, held still for one full breath cycle.
Nothing is wrong. Take one breath here before the next task. The in-water form of STILL.
Notice this
Two fingers to the eyes, then held open toward the water rather than at an object.
Not a fish or a hazard — the whole scene. An invitation to look wide for a moment.
학습 카드
한 번에 하나의 수신호를 살펴보세요. 이름을 읽고 손 모양을 떠올린 뒤, 카드를 뒤집어 모양과 의미를 확인하세요.
간단한 점검
여덟 가지 수신호. 각각 하나의 손 모양이 있습니다. 모든 답에는 이유가 함께 제시됩니다. 점수보다 의미가 중요합니다.
…
Common questions
Are scuba hand signals the same in every agency and country?
The essential signals — OK, up, down, stop, out of gas — are effectively universal across SSI, PADI, CMAS, RAID and others. Beyond those, details differ by agency, region and dive site. That is why the briefing, not the internet, is the final authority: agree your signals with your buddy and guide before every dive.
What is the most important hand signal in diving?
The thumb up. It ends the dive, it is an instruction rather than a request, and any diver may give it at any time without providing a reason. A close second is the flat open palm — stop — because most incidents grow out of tasks added on top of a situation that was already full.
Why is thumb up 'ascend' rather than OK?
Because on land the thumb up means approval, and underwater it means end the dive. Confusing the two costs dives and occasionally more. Underwater, OK is always the finger-and-thumb circle, never the thumb alone.
How do I signal that I am anxious but not in danger?
Most standard signal sets have no word for this, which is why divers stay silent until the situation is red. Mindful Diving™ adds an agreed amber signal — not in trouble, not fine — so the pair can slow down and stay close early. It is agreed on the surface in the Buddy Agreement and never replaces an agency signal.
Can I practise hand signals before diving?
Yes, and it is the cheapest safety practice there is. Run through the whole set on land with your buddy, then again with masks on in shallow water. Signals you have rehearsed together arrive faster than signals you have only read.
Where signals become presence.
MD-1 Mindful Diver™는 다이빙 전 합의, 조기 신호, 차분한 대응을 훈련합니다. 필요할 때 바로 실행할 수 있을 때까지 연습합니다. 모든 훈련은 이미 보유한 교육단체 자격의 범위 안에서 이루어집니다.
고요에도 언어가 있습니다.