Open Water Swim Anxiety: What It Actually Is and Exactly What to Do About It
By Coach Rachel, Rapid Snail Racing
You wade in. The water is colder than you planned for. You put your face down and something shifts. Your breath goes short and high in your chest, your heart pounds, and the shore suddenly feels very far away. That is open water swim anxiety, and it usually shows up in the first 100 metres.
You are in good company. It does not mean you are a bad swimmer, and it does not mean triathlon is not for you. Your body is reacting to an unfamiliar environment, and that reaction can be trained.
This post goes deeper on the fear itself. For safety rules, sighting and season timing, read our companion post, Open Water Swimming for Triathletes: Safety, Confidence, and Why It Matters Before Race Day. The two work as a pair.
Every year, I have the dreaded first open water swim. We live in Ontario, and that usually means it happens in a race setting, with no open water exposure yet for the season. It is very important to get in the water and practise a little, but that is not always available. In those cases, it is very important to visualize the swim, stay relaxed and keep your breathing under control.
This is coaching guidance, not medical advice. If you have a medical condition or a history of panic attacks, talk to your doctor before you start open water training.
Open Water Swim Anxiety: What Is Happening in Your Body
Several real things happen at once, and knowing them takes some of the fear away.
Cold water shock. Cold water on your face and chest can trigger a gasp and fast, shallow breathing. It is a normal reflex and usually settles within a minute or two of slow breathing.
Shallow breathing. When you are nervous you breathe high and fast. You take in air but never feel like you have enough, which feeds the fear.
No wall, no lane line. In a pool the wall is always a few strokes away. In open water your brain has no fixed reference and reads the unknown as danger.
Limited visibility. You can't see the bottom or other swimmers, so your brain fills the gap with worst cases.
Coach Rachel guides an RSR athlete through her first cold-water open water swim. What the experience actually feels like, how to breathe, and how to build confidence when the water is cold.
Every one of these gets easier with repetition. Calm is a skill, not a personality trait.
Before You Get In
A steady start prevents most early panic. Build this into every swim, including race day.
Never swim alone. Swim with a buddy or at a supervised session. Wear a bright cap and use a tow buoy.
Tell someone your plan. Share where you are swimming, when you start, how long you expect to be in and when you will check in.
Know your exit. Spot where you will get out before you step in.
Breathe on land first. Take five slow breaths with the exhale longer than the inhale.
Wet your face gradually. Splash your face and neck, then put your face in a few times while standing. Let the cold shock pass before you swim.
Let your wetsuit settle. Let a little water in at the neck and give it a minute to warm up.
The First 50 Strokes
Most panic starts here. Your breathing has not settled, the cold is fresh and you want to rush. Give those strokes a plan.
Strokes 1 to 10: swim well below your normal pace and exhale fully underwater every stroke.
Strokes 10 to 30: blow bubbles steadily and breathe every two or three strokes with an even rhythm.
Strokes 30 to 50: pick one thing to notice, like your hand entering the water. Give your brain a small job instead of a big worry.
At stroke 50, check in. Is your breathing slower than when you started? If yes, keep going. If not, use the reset below. Both answers are fine.
Swim parallel to shore for your first few sessions. Knowing you can stop and stand at any moment calms many athletes.
A short Inside the Shell walkthrough of sighting, breathing and staying calm in open water.
If Panic Hits: A Step-by-Step Reset
Panic is not something to fight through. It is something to interrupt early.
Stop swimming forward. Stopping is allowed.
In a race setting, move toward the outside or inside of the course so that you do not get swum over and start to panic more.
Float or hold on. Roll onto your back with arms and legs spread, or hold your tow buoy.
Breathe out long. Take five to ten breaths with exhales longer than inhales.
Name it. Tell yourself, "This is my body reacting. It will pass."
Change your stroke. Switch to breaststroke or backstroke with your head up until your breathing is yours again.
Decide calmly. Continue slowly, head toward shore or exit. All three are good decisions.
Signal for help if you need it. Raise an arm and call out to your buddy, a lifeguard or a safety craft. Asking early is experience, not weakness.
Practise this on a calm day in water where you can stand, so it feels automatic before you need it in a race.
Why relaxing makes you faster in the water, and how to let your shoulders and breathing settle.
Race-Day Starts: Avoiding the Mosh Pit
For many athletes the crowd is scarier than the water. Arms, legs and splashing can trigger panic fast.
Start wide. Line up on the outside of the pack. You swim a little further, in clear water.
Start at the back. Let the pack go and begin 10 to 20 seconds later, if your wave allows. Calm is worth more than those seconds.
Start near an exit or safety craft. Many athletes settle faster at the edge of the course.
Read the swim briefing. Find out where safety craft will be, what the cut-offs are and how to signal for help.
For the rest of race day, read How to Handle Triathlon Anxiety from Start to Finish and our Race Week Checklist.
A 4-Week Exposure Ladder
Confidence comes from repetition, not force. Adjust this to your ability and calendar, keep the safety rules, and keep pool sessions going alongside it if you can.
Week 1, get familiar: about 10 minutes in shallow, calm water, parallel to shore. Practise the pre-swim routine and the first 50 strokes. Breaststroke is fine.
Week 2, build comfort: 15 to 20 minutes. Add two planned stops where you float and take five long exhales, so the reset feels normal.
Week 3, add race ingredients: 20 to 25 minutes. Add sighting every 6 to 10 strokes and swim a little further from shore with your buddy and tow buoy. Wear your wetsuit if you will race in one.
Week 4, race simulation: swim close to your race distance at an easy, steady pace. Practise a wide or back-of-the-pack start with your group, then exit calmly.
Rough session? Repeat the week. A shorter, calmer swim beats a long, tense one. For pool technique, see Learn to Swim Better for Triathlon as a Beginner.
When to Ask for Help or Coaching
Some anxiety is normal and eases with practice. Reach out for coaching if panic returns in every session, you avoid open water because of fear, you are postponing a race entry because of the swim, or you want a plan built around your race date.
If you have chest pain, dizziness or trouble breathing that does not settle when you stop, get out of the water and seek medical help. Keep the rules from our open water safety post in every session: never swim alone, tell someone your plan, wear a bright cap, use a tow buoy and know your exit.
When an athlete tells me they are scared of the swim, I say: "Practise, practise, practise." There is no substitute for getting out in the open water safely and practising the swim before the race. When you know what to expect, your anxiety will naturally be a little lower.
Key Takeaways
Open water swim anxiety is common and trainable.
Cold water, shallow breathing and no wall are real triggers, not weakness.
Use a pre-swim routine and the first 50 strokes plan to start calmly.
If panic hits: stop, float, exhale long, change stroke, then decide.
On race day, start wide or at the back.
Never swim alone, and ask for help early.
FAQ
How do I stop panicking in open water?
Stop swimming forward, float or hold a buoy, and take five to ten long exhales. Switch to breaststroke or backstroke until your breathing settles, then decide whether to continue, head in or exit.
Why do I feel anxious in open water but not in a pool?
A pool gives you clear water, walls and lane lines. Open water removes those, adds cold and limits what you can see. Gradual, repeated exposure teaches your brain it is manageable.
Is it normal to panic during a triathlon swim?
Many athletes feel panic or near-panic in a crowded start. It can be managed with preparation, a calm start and a reset plan. If you have a history of panic attacks, talk to your doctor first.
What are the best first open water swim tips?
Never swim alone, tell someone your plan, wear a bright cap and use a tow buoy. Start in calm, shallow water, swim parallel to shore, keep it short and exhale long.
Ready to Build Calm, Confident Open Water Skills?
Nervous about open water is normal. Staying nervous is optional.
Want to start free? Download the Swim-Ready plan on TrainingPeaks with code SHELLSPLASH.
Want a coach beside you? The Tri-Ready Beginner Package gives you the swim, bike and run foundations with four weeks of email coaching included, so you can ask exactly the questions this post raises.
Ready for a plan built around your race date? Tri-Ready coaching includes swim programming built around real open water preparation.
Not sure which fits? Talk to RSR and tell us your race date. You can also browse the Beginner Athlete Hub for free guides.
Speed Optional. Fitness Mandatory.
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